HotBot Top search engine with a large database, easy advanced search. Bookmarks Good search engine. Nice customers relations. Barnes and Noble Giant bookstore, in cyber version. Britannic version of Amazon.
Some books are easier here.
Books Stacks Large bookstore. Electronic Journal of Probability and Electronic Communications in Probability . Two eletronic journal on probability, with downloadable papers. Numerical Recipes . Eletronic version for C and Fortran.