phpBB Installation Service
PHPBB is a free open source message board/community forum software written in PHP. PHPBB Forum work with several backend databases including popular MySQL database. phpBB forum is very popular forum, so many hosting control panel will do an auto installation for you. Still you need to keep it upgraded your self to avoid hacking.
The power of PHPBB is the large community of user, who contribute to the developement of the opensource software. You will find lot of templates/skins and lot of MOD's that allow you to add new features to your forum.
If you want to see how a phpBB forum will look like, visit following sites
With phpBB forum software, you can turn your site into a community. There are large collection of MOD's that can be installed to enhance functionality of phpBB forum.
Some of the usefull phpBB MOD's are Able2know SEO MOD, which make your forum pages look like HTML, making it search engine friendly, Quick reply MOD, Attachment MOD and much more.
For more information on phpBB forum, visit www.phpbb.com
If you don't want phpbb forum installed on your server and keep it upgraded, you may look into Free Hosted phpBB Forum Hosting provided by www.netfreehost.com/phpbb/