People often ask me why do I preach use of RSS 2.0 and not the other flavors of RSS. Today, I ran across another great example. del.icio.us uses RSS 1.0 and for months Google Reader users have not been able to subscribe to del.icio.us feeds. Why? It's pretty simple, because RSS 2.0 makes up the vast majority of feeds today, RSS 2.0 is simply better supported and more reliably implemented (by Google Reader and almost every RSS client out there). That is, you know RSS 2.0 just works. You can't say that for RSS 1.0.