Wiki: Search Only Encyclopedia and Wikipedia Type Websites

At Custom Google Search based, you can search only encyclopedias and Wikipedia type websites. The search engine scans most of the big online encyclopedias like Britannica, Encarta, InfoPlease, Wikipedia etc., as well as other smaller independent wikis.

While users can search all sources at the same time, there are also options to limit search to Wikipedia online, all online wikis, or search only on conventional online encyclopedias.