Most people soon realize that they can increase their follower numbers dramatically by aggressively promoting your Twitter URL online. Email signatures, forum signatures, badges on blogs, and a variety of other methods can help increase the size of one’s fan base.

Now that Twitter is getting so big, there’s another way to increase attention. It may be time for you to start promoting your Twitter URL offline, too.

Put it on your letterhead. Stick it on your business cards. Is your company handing out brochures, running Yellow Pages advertising, putting a display ad in the newspaper? Put that Twitter URL right there for everyone to see.

When Twitter was smaller, it didn’t seem like it could make much a difference to engage in offline promotion. Now that the user base has grown to such monumental proportions, it’s time to pull the trigger on offline promotion.

These techniques have a proven record of success with other URLs and should transfer nicely to promoting your Twitter presence.

You want to maximize your follower base, right? Start spreading the word online… And on the street.