Technology Counts 2010 (by Education Week) provides district-level statistics about tech use in K12 schools. This year the statistics include mobile device use.
* Online access to the library catalog: 72% elementary and 82% secondary provide it for all students (6% elem. and 2% secondary for some)
* Online access to databases: 60% elementary and 68% secondary provide it for all students (10% elem. and 6% secondary for some)
* 89.5% libraries have automated circ systems, and 87.2% have these systems for student and faculty use
* The average # of computers is 12.2 in elementary and 26.4 in secondary libraries, and almost all have Internet connectivity
Other school data deals with instructional and administrative tech use.
Education Week (2010). Technology Counts 2010.