THE ANCIENT WORLD ONLINE (AWOL) BLOG currently has lots of goodies posted:
LSJ at TLG: The Liddell-Scott Jones Lexicon
I have an old edition of the LSJ as an app for my iPod Touch and I use it a lot (along with a similarly old edition of the Lewis and Short Latin lexicon). But this is the current, up-to-date edition and it's very useful to have it online.
Thesaurus Linguae Graecae (TLG®) Updates: Added to the TLG since early February 2010.
What's new in the E-CORPUS digital library
Arabic, Syriac, Georgian, and Hebrew manuscripts.
Mandaic Online: Mandaic.org: Mandaic and Neo-Mandaic Texts and Resource