I write regularly in English to Wikipedia, one can watch my contributions live at http://en.wikipedia.org/wiki/Special:Contributions/Ss_r. Also I write at times to Wikinews, contributions page is http://en.wikinews.org/wiki/Special:Contributions/Ssr. Recently I wrote also Español a poco también, pero still muy poco (http://es.wikipedia.org/wiki/Especial:Contributions/Sergei-sr).
My last Wikinews article is about Russian Wikipedia reaching 250K articles, see it at http://en.wikinews.org/wiki/Russian_Wikipedia_makes_quarter_million_articles (later it was translated in Spanish (not by me) as -->).