It's not that any one particular aspect of Facebook is irreplaceable. Status updates are essentially twitter, photo posting can be accomplished with flickr or MMS or other photo sharing options, links can be emailed, etc. etc. But Facebook has gotten its users accustomed to having it all together in a single interface, and in a way that allows you to reach many people all at once with minimal effort. Once you are accustomed to it, I can't think of any other way I could communicate the things I do on Facebook, to the variety of people I'm able to, anywhere near as conveniently.
__________________
'He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me.'
-TJ
|