GoMediaZine posted a Topher Welsh list of Top 28 Best Motion Graphics Blogs and Resources which is enough to keep you busy for a month of a lunar year. GoMediaZine has a ton of their own resources on motion, web, and print -- including a dedicated section for After Effects tutorials. The list has a few surprises and some extra tidbits about sites that you may have visited a few times and lost track of. Happily, in a world now oozing with AE resources, Topher is forgiving of typos and bad grammar.
One of the 28 resources listed hasn't been referred here, Digital-Tutors, which is 3D-oriented. It also has a dedicated section for free AE video tutorials (registration required).
Another site of the 28 resources listed is Video Hive, which has plenty of AE-related stuff but doesn't tag the AE stuff separately.
Some resources could have made a fuller list of a 30 resources for a month in a solar year, sites like After Effects Help and Support or perhaps just After Effects region of interest by Adobe's AE Help caesar Todd Kopriva. Without cash or swag influence, one can note that the common use of the phrase "RTFM" indicates that company resources are not necessarily a given! [Update: perhaps Adobe.TV was picked as the Adobe presence]
Also found recently (not that they'd make an imaginary AEP "best of" list yet) is another site, Forging Fire. They seem to have 2 categories of AE tutorials: theirs and "free" or external tutorials. In a handy turn, they tag the external tutorials by filter and function.