I have always prided myself on finding interesting/subtle, original
holiday cards (Caspari often has good ones), but would like to go to
sending them entirely online. However the online choices I've found
are boring, corny. (Caspari does not seem to have its own website.)
Are there some crafts-level sources for e-cards available?

I found this site by accident just before Christmas last year.
There is an annual fee, very worth it though. You can take a look at
several cards without signing up, but you can't send them until you
do. Enjoy.

http://www.jacquielawson.com/

thanks so much for the tip! Her site is the best I've seen, but it's
amazing there's not more to choose from out there. Where are her
competitors??