ERIC,
leading database, 1,1 mio. citations back to 1966, more than 100.000 full texts.
Infoconnex
an interdisciplinary database for the social sciences, education (FIS Bildung) and psychology.
iSEEK Education - Spezialsuchmaschine für den Bereich Pädagogik
FIS Bildung
database for books and journals, short results are free.
EduLine
British education index with thesaurus.
LOTSE
a service in German with Tutorial, web index etc.
EduLinks
in German. Full texts, articles, discussion.
eLearning Europe
news and projects
Bildungsserver
vast portal for education, in German.