In http://www.familysearchindexing.org/en/index.jsphttp://www.familysearchindexing.org/en/index.jsp I found that LDS is accepting volunteers to transcribe their records, starting with the 1900 US Census. According to the site, upcoming projects will soon be available (Poland?), and all of their database will be free for everyone, through the Internet.
I don´t see the point for the 1900 Census. Isn´t it already indexed through Ancestry.com?