It is a 24/7 job to keep track of all the resources that hit the educational scene and disseminate the trash from the treasure but I came across this handy collection of web 2.0 educational tools that are broken into a number of relevant areas. It seems to be very well maintained and up to date and I would recommend you have a look at it. Check it out here
The Latest in Tech, Tools and Toys for Teachers. Lesson Plans, Classroom resources and ideas for busy teachers. iPad Apps and Android Apps for teachers and students.