I think nobody would argue today, that search engines are most import sites in todays Internet. There are lots of information sources in the Net today, and every day they are generating lots of useful content. One of major parts of this content is generated by forums aka bulletin boards. But Google – most popular search engine is not to efficient on this side of search – if you try to find something using Google, you can find information on some public forum, but Google SERP is designed for generic pages search and search results will be not so clear. That is why more specialized search engines are so popular. Technorati, Google and Yahoo blog search engines, etc are really popular today.
Just few days ago new search engine was released. Its name is Board Reader. IMHO, its major advantage of this search engine is specialization on search by forums. Its SERP has been designed to display search results in really convenient way which is specific for forums (message threading model). Its index is not littety by all these doorway sites, etc, etc. So, I think this site would grow really fast especially if they would keep working on their services extending. As for me, I’d like to give them a try and will use this search engine for my forums specific search requests.