I've been playing around with uploading my own content to Footnote.com. The marriage license for Asa Landon and Mrs. Mary Sargent from 1849 in Winnebago County, Illinois, was something I added to Footnote.com a few days ago.
Of course, I can make annotations for names and places, which I did. Comments can also be added. Site users can interact with uploaded images just like other Footnote.com content. Uploaded images can be viewed for free, even without an account. If you want to "interact" with user uploaded content, or upload your own, you'll need an account.
Those who want to see the Sargent-Landon marriage license on Footnote can do so here. It provides a nice overview of how one actually views and interacts with the site's content. And the nice thing is that if someone does a search for Asa Landon on the site, the image I loaded will be pulled up. If they are related to Asa, hopefully they will contact me.
Mary Sargent was the mother of an Ira Sargent (born. ca. 1845 in Canada). I am thinking this Ira Sargent may be the same as my Ira Sargent who first appears in Hancock County, Illinois, in 1880.