I just wrote about how YouTube was started by former PayPal employees. There’s a new social media site called FriendFeed, written about in Gigaom today. It was started by former Google employees. It’s another site to keep track of but never actually see your friends. Then when they see you they will know everything about you, including why you look so tired today.

I’m a Twitter fan because the setup time and effort to track my friends is pretty low. One picture. Short bursts of information. Still, I don’t keep posting as much as I did at first.

Monday, it looked like Microsoft was interested in buying 5% of Facebook for a sum of $300-500 million. The following day, the plot thickened as Facebook CEO Mark Zuckerberg visited Seattle—and Microsoft—according to CNNMoney.com.

Senior editor David Kirkpatrick hits on the reasons why Facebook is so attractive to investors:

Facebook is the closest thing the world has to a next-generation Internet, one structured not around Web sites but around people. In the Facebook topology, every data source or service is defined by who else is using it.

The company has, in a crude way, solved the critical problem of Internet identity. Each member’s profile is tantamount to their personal Web site, which defines who you are, who you know, what you are interested in, and what you are doing now.

TechCrunch is reporting LinkedIn will allow users to add photos as of this Friday. As Mike Butcher suggests, the move by LinkedIn is likely in response to the growing number of people using Facebook for business networking.

Is this too little, too late for LinkedIn?

While I have a LinkedIn account–and like the service–since joining Facebook I’ve found myself using it for business instead of LinkedIn. I’m not sure I’d go back to LinkedIn.

What about you, which do you prefer for business networking?

I know, you were all shocked last month when I had to break the news to you that there were perverts on the Internet—even on the hallowed (and supposedly fenced-in) “grounds” of Facebook. I’m sure you’re just now recovering from the shock, so I hate to have to do this to you again, but: there are still perverts on Facebook. Yes, nearly six weeks after we first brought this to the general public’s attention, Facebook hasn’t done anything to the nasty people using their network for nefarious purposes.

Okay, okay, </tongue in cheek>. That was my initial reaction when I saw the headlines today: New York Attorney General Investigating Perverts on Facebook, etc. But looking deeper, this story shouldn’t be dismissed as overcautious fuddy-duddyism.