Buy current poetry books:
http://www.lights.ca/publisher/db/topics/Poetry.html
http://www.pw.org/small_presses?perpage=*
http://www.newpages.com/book-publishers/
http://www.stmarksbookshop.com/
https://store.mcsweeneys.net/
http://books.google.com/
Amazon poetry books
Barnes & Noble poetry books
Barnes and Noble poetry anthologies
Poetry bookshop online
Caranet.co.uk
http://books.wwnorton.com/books/subject-detail.aspx?tid=544&cid=&lastPage=4¤tPage=1&sortparam=SortDate
http://www.amazon.com/Favorite-Poetry-Magazines-Journals-Review/lm/R34VM31WEUHYC5
Own books(including rare and out of print):
http://www.abebooks.com/
http://www.biblio.com/