git-annex repositories are often kept private, but here's a list of some of the public repositories that you can clone to try out git-annex.

• downloads.kitenet.net
  git clone https://downloads.kitenet.net/.git/
  Various downloads of things produced by Joey Hess, including git-annex builds and videos.

• debconf-share (currently unavailable via IPv4)
  git clone http://annex.debconf.org/debconf-share/.git/
  DebConf Media, photos, videos, etc.

• conference-proceedings
  git clone https://github.com/RichiH/conference_proceedings.git
  A growing collection of videos of technology conferences. Submit a pull request to add your own!

• ocharles's papers
  Lots of CS papers read by Oliver.

• rejuvyesh's papers
  Quite a few AI papers read by rejuvyesh

• MRI brain scan data
  git clone http://psydata.ovgu.de/forrest_gump/.git studyforrest
  High-resolution, ultra-highfield fMRI dataset on auditory perception.

• gst-integration-testsuites
  GStreamer integration testsuite media assets management

• ccc-media-annex
  git clone https://github.com/ntnn/ccc-media-annex
  git-annex repository using the CDN of the German CCC.
  Contains a lot of talks (mostly in German) held on events from the CCC as well as other stuff.

• ifarchive
  A slightly outdated mirror of http://ifarchive.org. Scripts should probably be written to update the archive regularly.

• datasets.datalad.org A large (over 50TB of data) collection of DataLad (git-annex) datasets, providing access primarily to public neural data resources. Organized via git submodule mechanism. Although underlying repositories are pure git/git-annex repositories, use of datalad tool is advised for more functionality (search, recursive operation, etc). It is regularly updated and enriched.

This is a wiki -- add your own public repository to the list! See centralized git repository tutorial.