I'm surprised I haven't seen this story covered on road.cc . British cyclists Francis Cade and Justin Levene are cycling and hand-cycling respectively across the USA to raise money for Get Kids Going!, a charity that helps disabled children get adaptive sporting equipment. The daily videos are generally under ten minutes, and quite entertaining.
Link to the first video in the series, they're currently in the middle of Texas on day 30.
I have no affiliation, just a guy who likes Francis's videos. I've also sent in a donation.
If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.