Your icon reminds me that we have no Sheppard/Weir community over here! Someone who has more time on their hands should make one. (I have a lot on my hands modding girlgay.)

batchlunch - recipes for large quantities of food
addme_fandom - finding other fans to add
dw_community_promo - finding other communities to add
ponds_daily - ponds and friends pics, every day!
shes_awesome - what the name says
bechdel_test - all about women passing the bechdel test
sg_rarepairings - rare stargate pairings
rainbowlounge - like addme_fandom, only for lgbtq folks (idk if you are or not, but I didn't want to assume either way)
leverage - not terribly active, alas
where_no_woman - women of star trek, all iterations

These are just some of them! I'm on less fannish comms here than I am on LJ. Anyway, they're all suggestions, but obvs. I won't have my feelings hurt fi you decide they're not for you.