PAGES ABOUT CLASSICAL MUSIC:
& www.sheetmusicarchive.net
-on this pages are o lot of free sheet music for piano. If I need some sheet music, I go there. It's the best page with free sheet music which I have found.
& www.charliespiano.com
-next page with free sheet music
& www.music-scores.com
-next page with free sheet music
& www.free-scores.com/mp3-instruments
-page with free mp3 classical music
& www.freesheetmusicguide.com
-page with links on classical music

PAGES ABOUT PENPALS
& www.penpalgarden.com
-very good page with thousand of people who want to correspond with somebody. Lucid and quite quick searching... It's free.