On July 29, 2015, jihadi users on Twitter circulated a link to a complete archive of audio lectures by American-born Al-Qaeda in the Arabian Peninsula (AQAP) cleric Anwar Al-Awlaki, who was killed in a 2011 drone strike in Yemen. The archive page is hosted on the archive.org website.
Below is a tweet publicizing the archive, with a screenshot showing the various lectures featured in it.
Source: Twitter.com, July 29, 2015.