#13-B Delicious

Delicious seems pretty cool; I can see how useful it would be to have your links in a place accessible from anywhere.

In a side note, I noticed that this, like Rollyo, is another site powered by Yahoo.

#12 Rollyo

I was slightly familiar with Rollyo and swickis like Eurekster, but I'm with the others who've said that just a good ol' Google search will usually suffice. However I can definitely see the usefulness of the tool. I made a search engine with a few sites that I'd be okay with my 7 year old visisting, such as National Geographic Kids and FactMonster. I did a search for 'dinosaurs' and it came back with oodles of results, so it seems to work. The only thing I didn't like about it was that it features 'sponsored links' at the head of the search results, so if I was really concerned about him clicking on unknown links that would be a problem.