Useful links

Fiske Center for Archaeological Research Reference Pollen Database
Neotoma Paleoecology Database (Includes North American Pollen Database)
National Climate Data Center Paleoclimatology Data
European Pollen Database
Global Pollen Database
PalDat - Palynological Database
CUPOD - Cambridge University Palynological Online Database
International Tree-Ring Data Bank
University of Nevada, Reno - Department of Geography