The term colocation is used in the computer industry to describe the use of a specialist data centre that is run independently and hosts file servers for a number of different companies.

Independent data centres of this type are also called colocation centres, 'colos' for short, or the more descriptive 'carrier hotels'. These data centres are set up by specialist firms with expertise in information technology, to serve the needs of numerous clients. That way, the clients can simply outsource this service to a colocation supplier and let them take care of everything for them. This is much more sensible that trying to do it yourself, for a number of reasons.

Cost is an important consideration. If you were to invest in a state of the art data infrastructure yourself, you would have to spend more than a specialist supplier who could broker wholesale deals for IT services on your behalf which could save you a great deal of money in the long run.

Economies of scale come into play too. A professional colocation supplier will have invested in large, industrial-strength systems which are bigger and more powerful that any individual firm would ever need. This means that you are getting the benefit of a more powerful system, and you can buy in to it for a low relative cost.

Time is another element of the equation. Why re-invent the wheel yourself, when a colocation supplier has data solutions at their fingertips. These would include solutions to your immediate requirements, and also remedies to any future IT problems that you don't even know you have yet!

Access to expertise is a further advantage of using colocation.
You will have the benefit of advice and support from experts in the field who have experience of looking after many different types of requirement across numerous different industries. And this access will usually be arranged on a shift system, so that you can always speak to someone at any time of the day or night on any day of the week, including weekends and public holidays like Christmas and New Year's Day.

In addition to gaining access to IT systems for networks, servers and data storage, colocation firms will also give clients the ability to interconnect with numerous telecommunications suppliers and providers of other network services. Because colocation firms look after many kinds of IT need across a wide range of industrial sectors, they will be able to suggest packages of services after doing a survey of your particular needs and current situation.

And because the colocation firm is an expert in their field, that means that the package they propose for you will have the capability of being adapted as the needs of your business change. Upgrades can be discussed and arranged quickly with people you trust, who know your business. This means that clients can then focus on their core business, without having to divert from what they do best and try and become a mini-expert on IT data systems themselves.

Normally, if you want a professionally designed, custom-built website for your new virtual assistant business, you should be prepared to spend at least a few hundred dollars.

But, all that can change if you know where to find the best deals and the best designs for the lowest price.

First, it costs more to have a brick-and-mortar company design a website for you. Have you seen those newspaper ads that offer a 5-page website for $500? These are probably companies with physical locations. They have to charge more simply to pay for their overhead: office rent, designers' wages, advertising costs and so on.

Therefore, it would be wise to use a virtual assistant (VA) instead! As you already know, VAs often work from home so they do not have high operating costs like a big company does. On the other hand, a VA will be able to design images with quality similar to (or better than!) those of designers from big companies.

However, choose your VA with care. The best way to find the right VA for your project would be to go to visit the website of a VA association. There you can post your RFP (request for proposal) and have hundreds of talented VAs bid on your project, so you will get the best deal. You will also be able to choose your designer based on her experience, past transactions and client testimonials, so your value for money is secured.

Another route you can take is to purchase the Virtual Business Startup System, created by Tawnya Sutherland. It comes with several beautiful, easy to use templates, perfectly suited for a new VA. The templates are easy to edit wth the help of WYSIWYG (what you see is what you get) programs such as Microsoft Frontpage, Macromedia Dreamweaver and so on.

Things which exist on one's personal computer are referred to as "client side", and on the web host as "server side". The average internet user might have first heard "client" in the context of applications installed on the personal computer, such as "email client". Those mail systems which can be used from anywhere are "web mail", and exist on the server side.

In practical terms, all your office suite programs, media players, programs to edit images, most games, and so forth, are probably client side, although "utility" type functions are evolving on the server side. For example, users can now share data on server side spreadsheets and word processors.

Most browser function is defined on the client side, perhaps with some JavaScript add-ons for interaction, calendars, multi-level menus, animated graphics, et cetera.

Business enterprise level content management, databases, store systems, and much more are on the server side. Server side programming can range from simple CGI scripts ("Common Gateway Interface") written in a variety of languages, such as Perl. Large databases can be built in the popular open-source MySQL, and accessed through interfaces programmed in PHP.

First embodiments of such CGI functions started a new copy of the executing module for each command request. To avoid server shutdown from excessive workload, host programmers have evolved better ways, but these need not concern us ordinary mortals.

Fortunately for this author, a web site builder does not need to be an expert in all those server side tools in order to use them. Most hosting companies now offer access to pre-installed modules. Persons wanting better features can purchase modules from third parties to upload and install, such as shopping carts, which are backed by support staff, user, or similar.

If the site builder lacks a very fast connection to the server, s/he can install client side copies of operating systems for SQL, PHP, other... to emulate behavior on the host. Sometimes the emulation is less than perfect, such as with different release generations, so adjustments may be needed after upload.

Why would anyone bother to do this? One reason is that PHP can take over parts of HTML coding, such as with "include files" which represent often used sections of header, footer, body, or serve more robustly than JavaScript for interactivity and utility functions.

If the connection is fast, however, present day "shared hosting" and "virtual private/dedicated servers" make it very difficult for one domain owner to break the system for other users. And only privileged employees have access to the power switch. VPS allows power users to get more behind the scenes than can the SH customer.

Caveat: Whether your HTML writing is done directly on host account or on personal computer for upload, keep an off-site copy against the day your hosting company drops or back levels your content. It will happen.

What ever the approach a person uses for working on the internet, all these elements are examples of "distributed processing", a concept which some large mainframe computer manufacturers had hoped would never be realized. Now that the small guys and gals have forced the issue, by using ever more powerful personal computers in place of dumb terminals, the big dogs have learned to love and profit from it.