The first link in the “Learn more” blog post linked from the front page of TrainerDay to the youtube video is down for me:
Just thought you’d like to know. I’m a new user and this link being dead gave a first impression of a unmaintained product. (But further reading on the forums give the impression that TrainerDay is live an kicking! 
Oh my, I moved that video and had links in like 5 places and missed this one. It has been this way for months and no one mentioned it. Thanks for letting me know. It is fixed now. Anyway, welcome and I hope TD is great for you. Yes, we are a very small team doing lots of stuff but have a lot of customers. But with our low prices and small overall size compared to the giants… we have to keep the team lean… We try to minimize customers finding bugs but it happens.
No problem! These things are hard to catch when no existing users see them, so I try to notify the developers whenever I see things like this 