Pink Floyd has always been one of the most interesting bands to me. Every song they've ever written, every album, has something that everyone can relate to. Pink Floyd was made up of Syd Barrett, Nick Mason, Roger Waters, Richard Wright, and David Gilmour. They first gained popularity in London in the late 1960's and then started becoming more popular with American audiences. Barrett left the band in 1968 and Waters and Gilmour became the primary songwriters and singers.
There most popular albums are The Dark Side of the Moon (1973), Wish You Were Here (1975), Animals (1977), The Wall (1979), and The Final Cut (1983).
this is the official site of Pink Floysd, and gives extensive history and information about the artists, albums, and tours.
this site gives a complete analysis of The Wall album and movie. It goes through every scene and lyric in the movie and album and connects it back to the artists.
an article discussing the possible meanings, motives, and stories behind The Dark Side of the Moon.