There is some new stuff at the National Geographic site.
http://www.nationalgeographic.com/ngm/0105/feature3/index.html#
If you scroll down, you can click onto a map which lets you
download a printable, full-color *.pdf format map showing the
inundated areas.
We are entering a golden age of marine archaeology, and the Black Sea
is going to be the mother lode. Because of the extreme anoxia of the
lower reaches of the Euxine, organic material does not decay. You get
Roman Empire period shipwrecks preserved in the state they were when
they sank. It is inevitable that we will also get down to the nitty
gritty of Meso- and Neolithic sites.
My own instinct is that ca 5500 BCE PIE-speakers were not down at the
old freshwater lake or its saltwater successor, mostly because the
internal evidence is they were an inland folk completely ignorant of
the ocean; there is also no home-grown IE flood myth. Of course, they
could have moved inland, but you'd think some sort of echoes would
have endured.