Recently found in the internet: some treasure troves containing many jewels of classical Raga music.

A true wealth of partly very rare historical recordings:
https://www.youtube.com/channel/UCjTZsoYEKdqaqwgtQZqVS3A/videos

Another treasure trove of rare historical recordings:
https://www.youtube.com/channel/UCJM1Py5-MyetFGG7M0fyQqQ/videos

Abhimonyu Deb started recently a channel with old videos from Doordarshan:
https://www.youtube.com/user/bileydeb/videos

Here his Mediafire folder with many rare AIR recordings and some 78 rpm records:
http://www.mediafire.com/?stpc5rgt65o4i

Nicolas Magriel has redesigned his Sarangi website and included now many videos by some of the Sarangi teachers he had recorded in the 1990s:
http://www.sarangi.net/index.php/8-about/2-about-sarangi-net

Here you can find on video the complete program of the Dhrupad Festival in New Delhi in memory of Ustad Rahim Fahimuddin Khan Dagar and Ustad Zia Fariduddin Dagar held from Friday, Feb 21 till Sunday, Feb 23, 2014. If anybody finds a way to download them please share this with us.
http://webcast.gov.in/ignca/index.html