I have longer thoughts on these items, but I've talked to enough people that I should highlight this a bit. Two areas that I've been experimenting with / learning about are digital downloads, specifically of games, and some Windows-only online games that I can now try thanks to Apple's Boot Camp on my Intel Macbook Pro.
Some game/digital download services:
New cellphone
Sending free SMS from a website
Residential VoIP in Canada: Not looking so good
50 places to see before you die
Dropbox vs. JungleDisk
Standing Cloud makes cloud hosting an app container