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Web Hosting - Databases, What Are They and Do You Need One? 'Database' is one of the most commonly used terms that one encounters in web site design. Yet, what they really are and whether they're essential is often not clear to novices. A database is a collection of organized data, stored in files that have a specific structure. It's that organization and structure that allows for easy and rapid storage and retrieval. The need for a database generally only arises when you have a certain amount of information and that information needs to have some structure. If you have a half-dozen names and addresses to store, a database is usually overkill. If you have a blob of data with no relationships between any of the items in that blob, maintaining a database is usually more trouble than it's worth. Maintain a database? Yes, like other complex systems a database, to be effective, needs to be designed properly at the outset then kept 'tuned' for good performance. The alternative is to gradually allow the database to become more and more disorganized. That leads to difficulty in use, poor speed of retrieval and more frequent failures. With MySQL, Access or MS SQL Server, the three most common choices of database product for web sites today, setting up a database is relatively simple. Even those with limited technical skill can get one up and running just by following some simple instructions. But some thought should be given to how you want the information organized, and to maintaining the system during its lifetime. Suppose you have a set of names, addresses, email addresses, products purchased, date purchased and amount. If you have only a few dozen records it matters very little how these pieces are arranged and related. A database usually isn't even warranted in this scenario. Once you have several thousand or more records, it matters a lot. Speed, the ease of expanding the set of attributes (like adding, say, product category), and other issues come into play. Even those with little technical expertise, but a willingness to exert logical thought and invest some time, can build a very robust database. Think about how you would organize a set of data (called 'tables'). Should Name, Address, and Product be in the same table? Or should the personal information be stored in one table and any product information (product, price, ...) in another? Some experimentation may be needed to get it right, but the choices have an impact on how easy the tables are to maintain. It also affects the speed with which programs can fetch old data and store the new. Having a database also introduces new maintenance issues for the server administrator, since backups usually need to be done differently. Recovering a failed database is usually more complicated than simply re-copying files from yesterday. Ask your hosting company what tools and skills they have for dealing with any database system you consider. It's true that introducing a database creates more complexity and the need for additional thought and administrative effort. At a certain level, professional expertise will be needed. But clearly the advantages outweigh the costs in many cases. Companies large and small eventually use databases to store and organize data. At some point, you may be fortunate enough to be one of them.

Start Sampling for Free with the Start Sampling Website If you are looking for the best in online sampling, there is one Web destination that you should know about. The websites is known simply as StartSampling.com, and it can do wonders for your cache of freebies. If you are an avid freebie hunter, this is a website that you will definitely want to keep at your freebies by placing it on your active bookmark list. You will find that this is a fun and active community that you can consult on a regular basis for the best in online freebie sampling. How Can You Become a Member of StartSampling? If you are a newbie to the world of online sampling and freebies, here is a brief primer on becoming a member of this active community. First, StartSampling is a free service—never sign up for a freebie service that asks for monetary compensation or that requires a yearly membership sign-up. All you need in order to become a member of the StartSampling community is the ability to willingly sample many fine products from some of the company's leading manufacturers. As a member of StartSampling, you will receive samples as well as participate in the site's own Frequent Tryer Miles program. The Frequent Tryer Milers program allows you to collect points. You collect these points from participating in a variety of sampling programs and taking advantage of special offers and promotions. As a reward for participating in these programs, you will receive pints and gifts for free. This is your reward for being an active member of the StartSampling community. How to Contact the StartSampling Company Directly If you find that you have questions and concerns about using StartSampling, you can contact the company directly by selecting the 'contact us' button that is located at the bottom of the StartSampling home page. However, you will probably find that most of your questions can be answered directly simply by perusing the FAQ section of the website carefully. The FAQ provides you with an extensive list of questions and answers that have been addressed and compiled by the company. What Exactly Does StartSampling Do? Many newcomers to the StartSampling community wonder if the company is a web research enterprise. In reality, StartSampling is a promotions and marketing company. They have recently managed to establish themselves as a leader in online sampling. They do this by connecting consumers directly with the right kinds of companies. As an active participant of the StartSampling community, you will have the opportunity to receive samples from companies that you did not previously recognize. Sampling also allows you to inform marketers about your specific desires and interests. This way, you will receive product and service offers that are tailored specifically to your interests. In effect, think of StartSampling as a way to make your voice heard as a consumer. Where Do the Product Samples Come From? With so many online samples coming your way, perhaps you are wondering where all the samples provided by this community come from. All the samples provided to you by StartSampling are furnished directly by the small and large companies that are working with StartSampling. These samples are provided to StartSampling because these companies believe in their products and want consumers to try them and express an honest opinion. Most companies are looking to receive consumer feedback from members of their targeted consumer group. Who is Behind the World of StartSampling? Many newcomers are curious about who is behind the scenes at StartSampling. StartSampling is a leading online company managed by small group of energetic individuals. It is a privately held organization that is growing at a rapid pace.

Web Hosting - DNS, How The Internet Keeps Track of Names The way computers communicate is, in a way, very similar to something very familiar: the postal system that delivers letters and packages. Here's how... The Internet is just what the name suggests, a large inter-connected set of networks. But those networks are pointless without the one part that forms what is called their 'end-nodes', otherwise known as computers. Those computers often need to share information because the people who use them want to share information. But, in a system where there are millions of separate computers, how can you enable them all to communicate? One very important feature of that solution is performed by something called DNS, the Domain Name System. Every part of a network that is going to send or receive information is assigned an IP address. That's a numeric identifier that uniquely specifies a particular 'node', such as a computer, a router that directs traffic or other component. They look like this: 209.131.36.158 But those numbers are more difficult for people to remember and work with. They also aren't very attractive from a marketing perspective. So, a naming system was layered on top of some of them, mostly the computers involved, though routers have names, too. But once you have a system that associates a unique IP address to a given name, you need some way of keeping track of all of them. That's carried out by several different pieces of the system: Name Registrars, DNS Servers and other components. The Name Registrars, overseen by IANA (Internet Assigned Numbers Authority) and other international bodies, provide and keep track of domain names. When you register with GoDaddy or any of a hundred other intermediate companies, ultimately that information makes its way into a number of specialized databases stored inside DNS Servers. A DNS Server is the hardware and/or software that tracks and forwards the IP Address/Domain Name pair from one place to the next. In many cases, there are a number of them between your browser and the remote computer you want to share information with. Suppose you request information from, say, Yahoo's site by clicking on a link on their site. DNS resolves (translates) the name of WHO IS making the request and OF WHOM, to addresses, then passes the request through the network to the requested IP address. The requested data is then passed back through the mesh of network components to your computer and displayed in your browser. Whether the communication is between a desktop computer and a server somewhere, or between one server and another, the process is essentially the same. DNS servers translate names into IP addresses and the requests for data are forwarded on. In some cases those DNS servers are part of a specialized network computer whose sole job is to do the translation and forwarding. In other cases the DNS software may reside on a server that also houses a database of general data, or stores email, or performs other functions. But however complicated the chain or the parts, the basic process is simple. Translate the name to an address, just as the postal system does. Whether international or local, your name is associated with an address, and the deliveries are made to the address, then forwarded to a particular name.