My former colleague from Satama Interactive and a co-inventor of Jaiku microblogging service (sold to Google then) Jyri Engeström spoke on Monday in Helsinki, Finland about the next successful internet businesses.
Interestingly he raised four different opportunities as a main points:
1. Online services that collect online identities. Facebook dominates this category though Facebook Connect so far.
2. "What do I do right know" -status updates aka microblogging services. Set your status/location/mood/etc to one service and it do spreads status around several sites. Facebook is number one here too.
3. Social inbox. A service that would collect your networks updates and messages. This would be interesting, and again, it feels that FB is here dominat as well because you could see blog posts, delicious updates through it.
4. Real-time search. No one is good in here. Not even Google who searches past. Very promising opportunity to dig into.