http://cosmictusk.com/clovis-population-decline-at-younger-dryas
http://sites.google.com/site/dragonstormproject/
http://craterhunter.wordpress.com/
http://anthropology.net/2009/12/16/more-clovis-comet-debate-and-a-response-from-dr-richard-firestone-2/
http://www-th.bo.infn.it/tunguska/
http://www.spacesafetymagazine.com/media-entertainment/increasing-rate-asteroid-discovery/
Much archaeology can be done, when the technology to do it is cheap enough, on the continental shelves. Most of the humans of the ice age and for centuries after were on those shelves. The water level rose relatively rapidly when the ice melted and very rapidly for a shorter time as Lake Agassiz broke its bounds and flooded out of North America, with a hiatus in which there was a subsidence and then a return and continuing rising of the water level which is much slower but ongoing.