So, her signature now includes a computer-generated image that looks like her.

“You get to pick your hair color and everything about you,” said Zuccheti.

The personalized e-mail trend began when people started adding inspirational quotes or favorite movie or book lines to their signatures.

Now, it’s even more high-tech, with images similar to the one Zuccheti uses where a users could design a digital version of themselves.

“They let you express who you are. It's exciting,” said Zuccheti.

Users can even change images depending on what is going on in their lives.

If animation isn’t for you, there are many different ways to customize your correspondence.

“The main reason it's becoming so hugely popular is that people are trying to find a way to convey their personality through their e-mails because e-mail is so sterile,” said Veronica Belmont of CNET.

Businesses are getting into the game, too. Belmont said do not be surprised if you receive e-mails with marketing in mind.

“Some people actually have embedded videos as their signature, or links to video content and even moving images,” said Belmont.

Business-related videos are one thing, but some people draw the line when it comes to promoting personal opinions.

Frequent e-mailer Rob Guglielmetti said, “They can sometimes be a little preachy."

Gugliemetti is eco-conscious and helps design environmentally friendly buildings for a living. However, when he received an e-mail that ended with a quote asking him to “Please consider the environment before printing this message,” he said he was upset.

“I guess they're enjoying themselves and they think they're clever, but I don't,” said Gugliemetti.

What really annoyed him was that the message came from a colleague in a work e-mail.

According to self-proclaimed queen of Internet etiquette Judith Kallos, that is a big mistake.

“With business e-mails you have to watch your P's and Q's and only include your name, title, phone number, Web site,” said Kallos.

She said users have to think about the recipient before sending off anything that includes personal views.

“Discretion is key. If you keep preaching to people who aren't asking your opinion they learn to dread seeing your name in their inbox. So, keep those for only people that you know agree with you,” said Kallos.

Experts said users should beware of possible privacy issues with some e-mail signoffs, mainly those with clickable links.

Experts said e-mail senders might be able to monitor who clicks on the links and how often.