Here is a link from Yale University, which suprising has a Russian coin collection.

It is quite a great page, as it explains different denominations of why they are minted in general, and probably the best for a beginner.

Yale University Russian Coins collection

Enjoy

It really is a great page

Look what I found, and fell in love:
Nicholas II and Alexandra in Paris

I'd say Nick had a rather beautifull wife
Pitty that these aren't for sale

IT seems like the Yale University has most coins in high grade. It will be cool if we can take a close look on their collection.