Is this similar to Google?

Well not really. Infoseek is primarily a Spectrum database search engine. It currently has indexed thousands of database entries pertaining to software titles, authors, books, magazines, instructions, inlays, screenshots, et al. It goes without saying that it's an invaluable tool in locating resources in the labyrinthine maze of data that resides on WoS. If you are looking for something in particular, Infoseek should be your first stop in your search.