Like everything else MySociety does, this rocks: crowdsourced timestamping to align captures of BBC Parliament video with the Hansard record already archived and searchable at TheyWorkForYou.com.
I’ve matched 5 clips which at time of writing makes me the 25th most-prolific stamper today. WooT!
[thanks to Jo for the link]
[update: thanks to Ben Courtney for the link correction. Idiot operator error, apologies)