shaispnoi637 said:
is purchasing "hosting" necessary when i purchase a domain? I know what a domain is, but I dont know what hosting is...can you guys explain it to me please. On the other note, I have to create a website for couple of businesses/organizations in the near future. Do you guys have any advice as far as purchasing domains and hostings? Do i have to have them purchase domain and hosting for each businesses? Or can i purchase 1 hosting so i can use it for all businesses? HELP

thanks in advance.
Others may have some thoughts on this that differ from mine so don't take off and do what I say until you get more feedback, okay?
Hosting is renting webspace and bandwidth (data transfer) to enable you to place a website on their server so others can view (that's where the data transfer comes in). This works in much the same manner as using a free service such as goecities, homestead, and some others, except that you pay for it and don't have to place any ads on the site except those you wish to place on it. In addition to webspace you also get other services. Most of these offerings are standard and differ little from one company to the next and usually don't cost anything extra. In another post I advised that you do some research into hosting before buying any service.
If they are separate unrelated businesses not owned by the same person you will have to buy separate hosting for each and everyone. Regardless of who owns the business each will need its own domain name.
As far as purchasing domain names and hosting, I typically advise that you purchase domain names from a service specific to selling domain names and not through the hosting company. Although it's not as much in practice as it used to be a hosting company can hold your domain hostage should you want to change services in the future.
This is a long post and hasn't begun to cover the information out there. The best thing I can advise is research on the net about hosting, what it does, what it doesn't do, and so on.