There are six new databases available in FamilySearch.org, including Canadian and Peruvian data.
The 1920 and 1940 US Censuses alone are over 240 Million indexed records with images. Frequently the Family Search images are superior in quality to the Ancestry images. This has been true for other databases like the US World War I Draft Registrations whose quality was such that I could read the street addresses that previously in Ancestry had been unreadable. So if you have any 1920/1940 census images that were a bit sketchy to read, give these a try. You may also find the indexes differ from Ancestry indexes for the same images — so the moral of the story is to look at these as well in case a new indexing provides you access to record you previously were unable to find in Ancestry.