An excellent review, and some good tips for us to follow up on. One additional note I'd like to add is that we've made it easy for users to add any search engine on Hittery to iGoogle or Netvibes or even their Google toolbar. So, if one or more custom engines are useful, users do not even need to return to hittery.com. They can simply search directly from Netvibes or iGoogle.

'Look Me Up!' is a simple tool for looking up information on your Facebook friends. It helps you search for everything that's out there about your friends and yourself: websites, images, videos...
Give it a try: apps.new.facebook.com/lookmeup/index.php

[Unlinked – Tony]

Take a look at Soople.com. Unfortunately, it hasn't been updated in a long time, but it still offers some nice Google search features.