Newsfeed Search Tools

I just attempted to find additional Rss feeds using the suggested search tools. I found the entire experience to be slightly confusing and a bit frustrating. First I tried to access Feedster, but the website was down, (possibly under construction)?! I was successful in accessing Topix, Syndic8 and Technorati, however, I was not impressed with any of them. I suppose if I had to choose a "favorite" search tool it would be Topix. Of the three I tried, it appeared to be the most "user friendly". After performing a keyword search, I found a fairly interesting newsfeed and added it to my newsreader.