I was reading about the Washington DC social media and technology scene and ran across this cool search application called Lumifi
. It allows you to search and break down your subject, so you aren't restricted as much to the first 10. (check out the Global Warming demo) It allows you to "drill down" to more results in a very easy fashion. Also other academic research applications for teachers and students, although these are aimed more at the University level academic. (The site takes about 20 to 30 seconds or so to load) Enjoy!
also clusters results around subject areas and runs lighter (quicker) Clusty seems to be using Google's search API, so you still get pretty stellar results (but I may be wrong)