haijinx - putting the hai back in haiku - is where I'm submitting this week (that's week 20 of 2011) and it's my first time submitting to this online journal.
The deadline for haijinx IV:2 is May 21, 2011. Check out the 'call for submissions' details here. One of the great things about haijinx is that they accept previously published haiku, although the majority of your submission must be unpublished work. Read through the recent issue haijinx IV:1 here to get an idea of the kind of haiku, haibun, renga, renku and sumi-e they're looking for.
Special guest editor for haijinx IV:2 is Aubrie Cox who is also in the process of editing the first Women's English-Language Haiku Anthology and has just released her first haiku chapbook - tea's aftertaste. The full haijinx editorial team includes Mark Brooks (Shimi), Carmen Sterba, Alan Summers, Roberta Beary, kris moon and Melissa Allen. You can read more about them here.