Today's Wolfram Alpha is the first step in an ambitious, long-term project to make all systematic knowledge immediately computable by anyone. Enter your question or calculation and Wolfram|Alpha uses its built-in algorithms and a growing collection of data to compute the answer.
BASE is a multi-disciplinary search engine for scientifically relevant web resources harvested from OAI scientific repository servers. In addition to OAI metadata the library indexes selected web sites and local data collections, which can be searched via one single search interface in one go. created and developed by Bielefeld University Library. BASEsearch