Exactly a year after the U.S. government shutdown Megaupload, the flamboyant entrepreneur Kim Dotcom followed up his file-sharing Web site with a new version titled Mega which went live on Saturday.

"As of this minute one year ago #Megaupload was destroyed by the US Government. Welcome to https://Mega.co.nz," DotCom tweeted, marking the kick off of the new Web site. The file-sharing website Megaupload was brought down by the United States Department of Justice on Jan. 19, 2012 on charges of online piracy.

Shortly after the launch of the Web site, Dotcom posted another tweet which spoke of the popularity of his venture: "Site is extremely busy. Currently thousands of user registrations PER MINUTE."

His claims were proved to be true as the Web site was unreachable due to massive demand in the initial hours. According to his claims, Mega reached a remarkable figure of 100,000 registered users in less than an hour. A later tweet from the founder said the website received 250,000 user registrations.

The Mega cloud storage service was initially opened for early users and now, anyone can sign up and use the file-sharing service with a basic free offering of 50GB of storage. The Web site has a three-tier pricing chart with additional storage and bandwidth capacity. Dotcom said his lawyers are working on a strategy by which the former Megaupload premium users can get premium status on the new Web site.

In another tweet, he showed off a screenshot of MegaMovie that looked like a service for movies, television shows, and music. The similar service and its contents had caused a lot of legal troubles for Megaupload.

Dotcom said his 'cyberlocker' is not an act of revenge on U.S. authorities who shutdown his Megaupload for what they accused him of "running criminal enterprise." He was arrested in January 2012 in a raid on his Auckland mansion involving 76 officers and two helicopters. He was released a month later. Dotcom is still fighting extradition to the U.S. and is charged with online piracy for which he faces jail if found guilty.