FamilySearch
FamilySearch is constantly adding searchable records.
I tested their records for Cook County, Illinois. I note you cannot right click and save a section but if you have Windows 7 you can use the snipping tool. If you hover over a name you get more information, perhaps spouse, parents and/or children. And if it is a vital record you can order a copy from the Cook County Clerk.
It produced assorted birth, death and immigration records for the surname. I note they have not done a bang up job with the ethnic names or the foreign birthplaces so you need to be flexible. Needless to say, the document may not have spelled things correctly to begin with.
I then tried their Wisconsin records. Hovering produces information which can be copied.
I could not find a Civil War pension index card for my 2g grandfather – there is a widow’s pension application and a dependent pension record. It’s a work in progress and perhaps they haven’t gotten to them.
You need to check back periodically to see if they have added a database you can use. You can also volunteer to help with the transcribing.