Mayer, who used Twitter to promote his recent tour -- and trade barbs with celebrity blogger Perez Hilton -- now communicates with fans via his Tumblr blog, "One Forty Plus." To date, he has signed on about 50,000 Tumblr followers, Mayer said in a post.
"I will leave the opining up to you, but I think I made the right move. I now have an even larger Tumblr addiction but it's sort of like a book addiction or a gambling addiction where you always walk away with the casino's money," he said. "It's one of those things you do all the time but isn't all that bad for you."
The 32-year-old recording artist joins a growing list of celebrities who have left Twitter. In January, writer and comedian Ricky Gervais cancelled his account, preferring to expend his social networking energies on his blog.
"I just don't get it [Twitter] I'm afraid. I'm sure it's fun as a networking device for teenagers but there's something a bit undignified about adults using it. Particularly celebrities who seem to be showing off by talking to each other in public. If I want to tell a friend, famous or otherwise, what I had to eat this morning, I'll text them. And since I don't need to make new virtual friends, it seemed a bit pointless to be honest," Gervais wrote in a post. "Also I've got the website and I don't have to restrict things to 140 characters. My tweeting was becoming like a tabloid version of this blog, and I couldn't even put important stuff like this up."
Other stars no longer tweeting include singer Chris Brown, singer Mashonda, actress and singer Miley Cyrus, basketball pro Gilbert Arenas, and VP Joe Biden.
There are, however, plenty of active personal and business accounts on Twitter: In June, Twitter hit a record 2 billion tweets per month, according to Pingdom. That translates into 64 million tweets per day, 2.7 million tweets per hour, 44,481 tweets per minute, and 741 tweets per second, the uptime analytics monitoring firm said. And the number of people accessing the site through their handheld devices has jumped 62% since mid-April, Twitter said in early September.