Oh no, these are all UA-independant. MAM interesting, numerous internal apps are still 16 bit. Host jbGB 16 bit apps, yes. Server stuff, no, or almost no, at least not for 'serious' server stuff. But I take back part of what I said, there is a Linux version.
Every site has it's own topic.
Host FredGB People who put up personal pages usually don't care much about traffic, it's just a nice thing to have, and point your friends and relatives to. There's more info out there every day for anyone interested in a particular topic. On-line buying will get better each year, maybe even each month. The commercial stuff is just what 'supports' the net. If you build it, they will come.