Experimental Writing Seminar: Constraints & Collaborations. In addition to setting out a few dozen writing exercises, the online syllabus for an introductory course taught by Charles Bernstein (poet and co-editor of L=A=N=G=U=A=G=E) links to a variety of poems, poetry generators, and prose experiments on the web. [more inside]
Vispo is a site dedicated to visual poetry, both static and animated, run by Jim Andrews (though there's also a sound section). Among my favorites are bpNichol's First Screening (made in Hypercard), poem game Arteroids, the works of Ana Maria Uribe, Oppen Do Down (warning: audio starts immediately), Enigma M, strings and a selection of typographic works by Clemente Padin
MNMLST POETRY is an essay by Bob Grumman about a strand of poetry that he claims is "unacclaimed but flourishing". Here are poems in this vein by Aram Saroyan (2), jwcurry, LeRoy Gorman, bpNichol, Michael Basinski, John M. Bennett, Karl Young, John Martone, Ian Hamilton Finlay and finally some mathemaku by Bob Grumman, the essay's author.