Roundup of web search and research sites

Anyone knows to go to Google or Yahoo but what if you need something more specialized? JD Lasica writes a weblog entry on the Lowdown on the search engine conference and gives some excellent pointers on how and where to search for better results and sites where you can get research materials. For example, ever hear of new search sites AllTheWeb or Wisenut? And how about The Virtual Acquisition Shelf & News Desk, a weblog with “Resources & News for Information Professionals & Researchers”?