Searching for myself in AncestryLibrary, I found that I was listed 2 times.  I also discovered that there are a lot of people with my name in this world.  Several within the Sioux Falls area.
I then searched my grandfather and found him in the 1930 census.  It gave me information about his parents and their birth places.  I also found his siblings and their ages in 1930.  I did notice that the spellings of several of the names were not correct.  I found it fun to look at who their neighbors were at that time!   It is  very cool that we can see an actual copy of the census record.  This is a great resource and tool.  My family does a lot of family history and I know that my dad has used this resource.

HeritageQuest seems easy to navigate and the information is interesting.  I searched the town I live in and found 3 results.  I liked that it gave a rating on the relevancy of each result.   I then searched people and searched my maiden name.  It was fun to look for my ancestors.  I found a name of an individual who is most likely my ancestor and I will have to do some further research on it.

Sanborn Maps is also an interesting resource.  I searched for Pierre, because I grew up there.  Looked at several different dates and of course noted the growth of the city.  Located the State Capitol building on one set of at the maps.