Speed Demos Archive (SDA) is a website dedicated to video game speedruns. SDA's primary focus is hosting downloadable, high-quality speedrun videos, and currently has runs of over eleven hundred games, with more being added on a regular basis. SDA additionally used to host two annual speedrunning charity marathons, Awesome Games Done Quick (AGDQ) and Summer Games Done Quick (SGDQ), before Games Done Quick LLC started holding the event independently in 2015. It hosted nine marathons in total, and raised over $2.7 million for various charities, with the most successful one being AGDQ 2014 which raised just over $1 million for the Prevent Cancer Foundation.