2. Ultimate Bulletin Board (http://www.infopop.com) - This
software created the explosion of web-based BBSes. Now on version 6, it still has what it takes to make a good strong community site. UBB uses PERL for its engine and stores its data to a proprietary file format in flat files. This enables you to install the software on almost every server available. The only downside to UBB is the price as it can be quite costly for smaller sites. My Personal Rank is 4 out of 5 Stars.

What is your view of UBB?