I googled glass seed beads and found these as a few of the top returns:

http://www.firemountaingems.com/search/ ... seed+beads
http://www.abeadstore.com/beads/index_glass_seed_beads
http://www.artbeads.com/delicas-seed-be ... 4Aod7UQAkw
http://www.millhillbeads.com/products/p ... category=1