Please, don't post any links to the O'Reilly bookshelf, as it is not free. The copyright page of the bookshelf states that the bookshelf is for use by one individual, and whoever made that copy publicly available on the web is violating O'Reillys rights (and income). While it's useless to try to dam the flood of such web pages, at least in the monastery, we shouldn't link to such sites.