Back in 2009 the AAVSO acquired the observation records of Olin Eggen, a prominent photometerist of the past century. These were all on more than 100,000 handwritten 3x5 cards: accurate photometric measurements of stars over much of the sky in the years 1960-1985. The goal of the AAVSO borrowing the Eggen cards was to get these data into a computer database so that they would be accessible to modern researchers.
The cards are now all in an online database. Each card needs to be reviewed by a volunteer who can identify which star is being referenced on the card. When completed a researcher will be able to input a star reference and get back the images of all of the observation cards related to that star.
This project had been started 3 years ago, but stalled due to an awkward interface. It has now been redesigned and tightened up and is ready for volunteers.
You can look over the interface and instructions by going to https://sites.google.com/site/eggencards/home  . If you are interested in helping out, please follow the instructions there to get sign-in credentials and card batch assignment.
A great project for those cloudy nights!
ps 7,204 cards reviewed so far, 101,042 to go!