@Tom, I've never even heard of some of those sites/apps!
Which ones?
The ones I have mentioned are merely the last 2 years or so. There are hundreds of sites I used to use that I haven't looked at for longer.
Remember the old Geocities webpages?
Google Talk used to be one of my favorite messengers.
Remember Lycos?
I used to surf Alexa Page Ranks too.
I found a lot of interesting stuff on Web100 as well.
Then there was Clipmarks (I think that turned into Pinterest but I'm not sure).
Now there's Buzzle (Good ffor finding worthless graphics).
I still read
http://www.appleseeds.org/spec-idx.htm#Christmas
The Tower of the Hand is still online
Tower of the Hand ~ An Encyclopedia of Ice and Fire
Star Trek Intelligence is still online
Star Trek Intelligence
I think twitter is sorted kinda like bookmarks. You can find a twitter account about anything you can think of.
Twitter would be fine if I was pressed for time but I really do like to explore websites and read them.