Kathy Schrock's List
Schrock has been a leader in technology in education for over a decade. Her new site on apps simply sorts them by type. Lots of them! Also on the site are thoughtful tools for evaluating apps.
Innovative Educator Consulting
This huge list (95 pages in pdf) includes ratings, annotations and cost.
Palm Beach County, FL
One of the leading iPad deployments for the past two years is Palm Beach County, Florida. Their lists of apps have been actively curated over this time and serves as a great starting point.
Online Collections That Matter
There a untold numbers of websites hyping apps for education, which you can find with the help of Google. If you have lots of time, go for it. If not, start with these sites where educators rather than random bloggers and advertisers recommend apps.
Richard Byrne's Site
No discussion of technology in education would be complete without Maine's own Richard Byrne's point of view. His iPad Apps site isn't in simple list form because he has so much to say about how each of his recommendations actually works in classes.
