www.clusty.com
When reviewing this search engine it really gave me some good places to go. I was able to look up the subject I wanted and it also gave me other places to go.
It gives a wide variety of databases such as

web

news

images

wikipedia

blogs

jobs

more »

Strengths
Up to date information
Narrows your subject
More subject that are related
Weaknesses
Gave you some topic that weren't really what I was looking for
Some of the items that came was not helpful to me, but once I narrowed a little it started to go in right direction.
Advanced functions
Gives the place its Cluster, sources and sites all together
Im not really sure what the operators supported were.
Overall this search engine was a good. I was able to get information that I could use in my research paper. I was able to look at subjects that I wasn't really thinking about. It also has a good source database.