There will be more words written on Twitter in the next two years than contained in all books ever printed.

A great piece of advice for online dating is to stand out from the crowd. So greetings like "hello" and "hi" are very common. They do less well than things that are a little bit quirky or a little bit weird, like "howdy" or "holla." The rarer your salutation, the better it does, in general.

We noticed recently that people didn't like it when Facebook "experimented" with their news feed. Even the FTC is getting involved. But guess what, everybody: if you use the Internet, you're the subject of hundreds of experiments at any given time, on every site. That's how websites work.

Women are much more discriminating. I think both types of people are equally interested in having an attractive partner. But women essentially give the thumbs up to only half as many guys as guys giving the thumbs up to women.

I know that shorter messages are better in terms of reply rate. The optimal length is something like 50 characters. Characters, not words.

To be universally liked is to be relatively ignored.

There will be more words written on Twitter in the next two years than contained in all books ever printed.