If you're a programmer--or even just familiar with an HTML or a scripting language--Google opens up even further. A large part of Google Hacks concerns itself with the Google API (the collection of capabilities that Google exposes for use by software) and other programmers' resources. For example, the authors include a simple Perl application that queries the Google engine with terms specified by the user. They also document XooMLe, which delivers Google results in XML form. In brief, this is the best compendium of Google's lesser-known capabilities available anywhere, including the Google site itself.
Topics covered: how to get the most from the Google search engine by using its Web-accessible features (including product searches, image searches, news searches, and newsgroup searches) and the large collection of desktop-resident toolbars available, as well as its advanced search syntax. Other sections have to do with programming with the Google API and simple "scrapes" of results pages, while further coverage addresses how to get your Web page to feature prominently in Google keyword searches. --David Wall, Amazon.com