'Not too bad for an old guy,' McCain says of 1M+ Twitter following

Sen. McCain now has more than a million followers on Twitter.

WASHINGTON (CNN) – Arizona Republican Sen. John McCain has passed an online milestone.

The former Obama rival now has more than a million followers on the microblogging and social networking site Twitter.

In a statement announcing the achievement, McCain said he was "both honored and humbled" to have amassed such a following. "It has been one of the most enjoyable experiences in my long political career – not too bad for an old guy," McCain added.

McCain's increasing use of Twitter marks a major shift from the presidential campaign when he said he "never felt the particular need to e-mail."

Earlier this year, McCain also became the proud owner of new BlackBerry.

In addition to slightly more than a million followers on Twitter, McCain boasts more than half a million supporters on Facebook.