Essentially, there are 2 types of membership sites.
A free website and a paid site where you need to pay a fee to be a member. These membership sites have one thing in common. Their memberships are composed of people who share a common interest or have a common need.

Even without paying for a membership, one can still buy a domain, put up a site and still be able to choose who to admit and not.This is done when the revenue is projected to come from sales to members after they sign up the site. There are free network websites that might be used for your purpose. MSN and Yahoo groups are two examples of membership sites that are offered for free. Anyone can join and put up these sites for free. There are no paid administrators or moderators required for these types of sites.

Each site has its own rules on how to join and the code of conduct for the website. It also hasdiverse topics and subjects. There are loads of sites for people with health problems or concerns and for those who have suffered the loss of loved ones. Websites for those individuals who are into crafts like woodworking and quilting are also presented.

For those who are passionate about traveling, there are also websites available for them.
No matter what age group you belong there is a site that suits your taste.
There are software available for chatting and space for posting pictures, document and links for every member of the site. If there's one thing these free websites don't have, it is access to lists and specialized data like music lessons.

On the other hand, paid for membership sites are set up by individuals or {businesses|companies|ventures] to make money by supplying information and access to numerous fields of instructions, specialized information or lists. The operation of the membership websites are either done by those who own the site or those who are hired by the site owner to check and look after the site. The subjects for paid for membership sites are even more mixed than the free sites and surely more specialized.

Author's Bio: 

Wattie Sanders is the owner of the profit pulling site http://www.miraclemediaproduct.com/membershipsite.html selling info-products

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