Allow other web sites to use your online community for their web site visitors. Just have them link directly to discussion board or chat room. Include your web site's ad or banner ad at top of page.

You could also just create a discusion board or chat room ring. It works just link a web ring except all online comunities would be linked together.

2) NO COST CONTENT

Offer other web sites free content to post on their web site. Include your link on all of your content. The content should be related to your web site because it will be in front of your target audience.

The designers of newly popular Search Engine "Google", which gets its raw search data from "The Open Directory Project" have designed a system where "rank" of your site when called up by a search is now determined by its link relationships and also by how many times your site is mentioned or referred to on other sites. To put it simply, Google wants to know that your site is linked to many sites whether they are directories, competitors sites, Message Boards or whatever

The logic of this is that if your site is worth linking to or referring to it must be of interest. Not only does Google's system rank how many times your site is mentioned in link pages, but it also checks to see how "linked" sites that carry your reciprocal link are. Sound complicated? It is, but what searcher gets is a better shot at finding what he or she wants precisely and quickly.

There are some oddities to Google system. If you type phrase "more evil than devil" into Google and then hit "I'm feeling lucky" option (a button that brings you most likely page Google can find) you get, believe it or not, homepage of Microsoft Corporation. Why is this? Because so many pages on net have referred to what they perceive as evil side of Microsoft. Thats a powerful, but unintended effect of all links and discussion boards out there on net.