Better Search Options: Simply Google and Windows Live Academic

Simply Google: In addition to the requisite Google search box, it also has search boxes for Images, Groups, Books, Blogs, and so on and so on, plus links to other Google sites like Analytics, Personalized Home, and Gmail, plus all of Google's blogs (and their feeds). Simply Google also has links for Google's various apps and its April Fools sites and, for, good measure, search boxes for Yahoo!, MSN, and a few others. No, this isn't the first meta-Google site, but for a site with a couple dozen search boxes, Simply Google does a nice job of keeping down the clutter.

Windows Live Academic:  currently indexs content related to computer science, physics, electrical engineering, and related subject areas. Academic search enables you to search for peer reviewed journal articles contained in journal publisher portals and on the web in locations like citeseer.
Academic search works with libraries and institutions to search and provide access to subscription content for their members. Access restricted resources include subscription services or premium peer-reviewed journals. You may be able to access restricted content through your library or institution.