Over the years, I’ve referred to the Early Indo-European On-Line resources at the University of Austin many times. They are hosted by UT-Austin’s Linguistic Resources Center. The LRC, like many other university resources these days, is facing budget cuts, possibly even closure. They are trying to make the case to keep it going. If you have used any of the LRC’s resources online, you can fill out a survey at the link below expressing your support:
Predictably, it will also ask for a donation at the end. If you’ve got a few nickels to rub together, a donation would not only help finance wise but probably also show that people are committed to the importance of such resources.
The page for the language lessons also has a donation button:
If you haven’t been, take a look while it’s still there, because it’s the best collection of scholarly but readable introductions to ancient Indo-European languages I’ve found.