I’m a little late to the party, but found out that Radclyffe’s Best Lesbian Romance 2013 through Cleis Press is up and running and ready to accept submissions. You can go to this link (RadNews!) and there on the left, you’ll see “Best Lesbian Romance 2013” link. Click that, and a pop-up for a .pdf will show. You can thus print it out for easy peasy reference. (Deadline March 15, 2012)
You can also find it here, at the Erotica Readers and Writers Association.
The ERWA also has some other calls for submissions:
JMS Publications is looking for LGBT short stories. See here (deadline Dec. 30, 2011).
EDITED TO ADD: Hi, all–Victoria Oldham noted (see comment below) that JMS seems to be a little tight with story rights. So, make sure you check into that if you want to work with them.
Also according to ERWA, Bradley Publishing is looking for romance, too. Check details here.
And Laura Antoniou is looking for submissions (heh!) to her leather anthologies. Click this link. One has a deadline of Dec. 31, 2011 and another has a deadline of January 31, 2012, and another February 28, 2012. If that’s your gig, go check it out!
There. That should keep you busy for a little bit…