Frogpond, the Journal of the Haiku Society of America, is open for submissions for it's Winter Issue. The cut off date is November 15. See full submission guidelines here. And you can connect with the HSA on Facebook.
I had the pleasure of meeting, and writing with, editor George Swede in 2009 when he came to New Zealand. A linked haiku verse that was written over lunch with George Swede, Catherine Mair, Pat Prime, Owen Bullock, Steve Cordery, Margaret Beverland, Sandra Simpson and myself is published in Lynx (scroll down to find 'Spider's Strand').