Bloogz is YASE (Yet another search engine) but like feedster it is only for blogs. The way I came across this search engine is its popularity, they are the #1 referring site to my blog now (not including your typical search engine sites like Google)

I did a couple of quick searches and it seemed to turn up good results and were relevant, but I will need more time with it to say if its really any good.

They do have 1 neat feature though, if you click here you can see todays blog postings.