Although the Boolean operators used by the various search engines are quite similar, the variations are too big to ignore. Some people choose one search engine as their own and learn its query language by heart. However, not one engine covers the whole Net, so you really need to use more than one.

You can (and should) read the help pages of the search services, but we are all in a hurry, and it takes time to find them. That is why Pandia has made so-called "Q-cards" for some of the major search engines and directories, giving you a short summary of the sites' search features and operators. You also get examples showing you how to formulate your queries.

You can access these cards from the Q-card page.