Swartz also focused on sociology, civic awareness and activism. In 2010 he was a member of the Harvard University Center for Ethics. He cofounded the online group Demand Progress (which recently voiced its support for Richard O'Dwyer) and later worked with US and international activist groups Rootstrikers and Avaaz.

| AtomicFile | Static library support version of the framework's AtomicFile,
a helper class for performing atomic operations on a file by creating a
backup file until a write has successfully completed. |
| LongSparseArray<E> | SparseArray mapping longs to Objects. |
| LruCache<K, V> | Static library version of LruCache. |
| SparseArrayCompat<E> | A copy of Honeycomb's SparseArray, that
provides a removeAt() method. |