Sure! The most active all inclusive comm is st_reboot, the newsletter is trek_news (which is for all trek), the st_xi_kink meme has been hopping with activity, and fullfilled request are conveniently sorted in a delicious account sorted with various tags here. There is crackenterprise for recs. For Kirk/McCoy there is kirk_mccoy.

I don't really have rec sets of my favorite stories, but I have read a lot of Reboot fic the last months which I tagged in my delicious account here, and I tag pretty comprehensively, so you should be able to find stories of themes you like (though I'm into Kirk, Spock, McCoy and Uhura, I don't read much fic that is Scotty, Chekov or Sulu-centric, so my bookmarks are bad for those).