I have no desire to watch any long TV programme in a web browser. If something is important I will record it onto a video tape and arrange to do this in advance. This has the advantage of not having to use the computer and I can keep the recording for a very long time if necessary. I don't pay a TV license currently, but even if I did, it would be soe I can watch the TV. I couldn't give a toss about the websites run by TV companies. I only use the BBC site for weather which can easily be obtained from other sites or from Ceefax, or just by watching the TV.
Gmail works fine without Javascript (I have used it fine on my 030 A1200), but I use it in MS Outlook about 98% of the time so it's web interface doesn't matter. I intend to switch to another service soon though as I want my email address to use the domain name that I own. I use Google's chat service over BitlBee in any IRC client, along with MSN and AIM. I am not having extra programmes open for these since 95% of my online chat is on IRC.
Never used Facebook. No need. I gave up on Myspace after I thought, 'what the hell am I keeping this page up for when it's primary use is for Hodgekinson to leave me a message on the odd occaision when he can email me instead'. It's only other use was for people from school to call me a {bleep}. I no longer have any use for such sites and will not have any use for them in the forseeable future.
As for YouTube, other than about 10 music videos that I have wanted to look up over the last year or so, I do not use it either. I am yet to find a video which is good or useful or has some relavence to me. And the quality of YouTube videos is absolutely {bleep} and they cannot be downloaded to watch later. Any videos which I make will not be put on youtube as I do not want anything which I put effort in to be amongst a big pile of crap on someone elses website. Nor do I want someone else to decide what player it will be played in (i.e. flash) nor do I want to have someone else dictate the quality of the video. How YouTube is 'useful' I don't know.
That just about clears everything up.