'Wikis' Offer Knowledge-Sharing Online (AP) AP - Taran Rampersad didn't complain when he failed to find anything on his hometown in the online encyclopedia Wikipedia. Instead, he simply wrote his own entry for San Fernando, Trinidad and Tobago. Wikipedia is unique for an encyclopedia because anybody can add, edit and even erase. And the Wikipedia is just one  #151; albeit the best known  #151; of a growing breed of Internet knowledge-sharing communities called Wikis.