San FranciscoThe Economic Times Google on Thursday made its version of communally-constructed online encyclopedia Wikipedia multi-lingual, opening its Knol compendium to nuggets of knowledge shared in French, Italian or German. The Internet search powerhouse is inviting people to submit written "knols," to indicate units of knowledge, in those languages as well as in English. Google's free Knol service has floundered since its July launch and international contributors could help it better compete with Wikipedia, which is consistently...