As part of the promotional material for a box set containing every single Floyd album, called Oh, By the Way, they've put up this website containing excerpts from each album, all with a fancy graphical interface:
http://www.pinkfloyd.co.uk/obtw/
If you're wondering where to start, Saucerful of Secrets, Dark Side of the Moon and Wish You Were Here have some of my favourite tracks up as previews.

Who's they?
But its a cool site.

...
You did not just ask who Pink Floyd are!?

...

Most famous progressive rock group ever. Their album Dark Side of the Moon has sold about 40 million copies and has possibly the most famous album cover ever:


You have almost certainly heard some of their music.

OH! Heh. NVM! I just thought someone else set it up, not Pink Floyd themselves. Well...

lol...The intro to that site is such a trip.

Maybe I should see it when I'm less tired, but it was making me dizzy.

Luciene wrote: lol...The intro to that site is such a trip.

They did start off as a psychedelic rock band, in the Syd Barrett days..

What's psycadelic rock and what's progressive rock?

Good luck Sent with that

Psychedelic rock is effectively music to trip to. Lots of weird sounds and effects and stuff. Very weird altogether. Interesting listening even if you're not on acid, though. Only really applies to Floyd's first and possibly second albums.
Progressive rock takes the idea of rock music and expands it. Long, complex instrumentals, often deviating from the verse/chorus song format, often use of unusual instruments, styles taken from outside rock (jazz, classical, ...), etc. Often concept albums with songs linking together musically and thematically, or running completely into each other. Awesome stuff. Listen to Dark Side of the Moon through, for example. Incredible.

For some reason, people think that's actually annoying...

What is?

Both types of rock.

There is alot more than two types of rock... I prefer the modern bands myself. Three Doors Down, Gorillaz, Red Hot Chilli Pepers...

Yeah, Red Hot Chili Peppers!
Three Doors Down!
Pink Floyd's still good though.

Post wrote: There is alot more than two types of rock... I prefer the modern bands myself. Three Doors Down, Gorillaz, Red Hot Chilli Pepers...

Hissss. I see your modern rock and raise you Led Zeppelin, Deep Purple, Blue Oyster Cult, Rainbow, ...
There is some good modern rock, though. Mostly alternative.

I like both the new ones, Gorillaz and the Red Hot chilli Peppers and the older ones, Led Zeppelin, Deep Purple, Blue Oyster Cult, have quite a few tracks of each band.

Nathaniel wrote: have quite a few tracks of each band.

Mine, basically.

Just... don't like those guys. I'd expect you don't listen to Hip Hop?

Correct.

Rush is good prog. And they're Canadian! And they have songs named after astronomical objects!

*Starts humming Cygnus X-1*

Awesomesauce!