There are also printed encyclopedias , and encyclopedias in the computer , such as Wikipedia , the largest computer encyclopedia .
As of 2007 , old encyclopedias whose copyright has expired , such as the 1911 edition of Britannica , are also the only free content English encyclopedias released in print form . However , works such as the Great Soviet Encyclopedia , which were created in the public domain , exist as free content encyclopedias in other languages .