The basics have remained the same. I haven't changed much on my websites in the last two years.
Actually the last minor changes I remember making to my websites was the introduction of quality score in Google Adwords - so I added some more text to picture laden landing pages and the other was more emphasis on page loading time so I added gzip compression and optimized code a little, but that was about all.
So far I have ignored all the social media stuff like faceblog, myspace, yourspace, herspace or whatever they are called.
The main change in the last years on the internet in my opinon: A lot more people talking to themselves on the internet... It seems like all those strange people I noticed on the street when I was a kid - those creepy guys and lonely old women mumbling to themselves - now have an internet connection and now no longer roam the streets but websites like twitter.