Neither Google nor Microsoft will say how many people have signed up to their sites.
Since February 2012, over 250, 000 Canadians have signed up for Fongo's free mobile phone service.
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One million of OnStar's 4 million subscribers have signed up for the e-mail service so far.
Most major pubs have signed up to support subscriptions on the iPad and iPhone.
PVH, owner of Calvin Klein and Tommy Hilfiger, and German retailer Tchibo, have signed up.
More than 800 people have signed up to help with clean-ups around the island.
Some 40 countries have signed up to the government-procurement agreement (GPA) to open public contracts.
MySpace, however, declined to name the advertisers that have signed up for the program so far.
What should especially interest television companies is that consumers have signed up to be marketed to.
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It claims to have 12 million people who have signed up to receive targeted e-mail advertising.
Fewer than two million people in Japan have signed up to poke and be poked.
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So far 175 out of the 7, 500 independent doctors with admitting privileges have signed up.
So far around seven countries of the 27 have signed up to do so.
Since its launch in 2008, 678 women across Tayside have signed up for the scheme.
Even more importantly, the major paramilitary groups have signed up to a peace agreement.
Eleven businesses have signed up for the service and Swellr is in talks with about 30 others.
Fifteen thousand people already have signed up for New York's program, city Transportation Commissioner Janette Sadik-Kahn said.
Yet only 6.2 million homes, or 15% of the total, have signed up for high-speed internet connections.
So far, 1, 000 merchants have signed up to voluntarily collect taxes for the SSUTA states, Duncan reports.
More than 200, 000 people have signed up for free online taster sessions being offered by Edinburgh University.
More than 300, 000 people around the world have signed up for online courses run by Edinburgh University.
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Zara is "liked" by more than 4.5 million people who have signed up as fans on Facebook.
Out of the 43 million people in Medicare, only about 10 percent have signed up on their own.
Twelve house builders have signed up to the scheme including Miller, Persimmon, Stewart Milne, Taylor Wimpey and Barratt.
Apple launched iCloud in October, and to date more than 100 million consumers have signed up for accounts.
Five businesses who have signed up are hosting 40, 000 bees in eight hives on their roofs and terraces.
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More than 350 firms in the city have signed up, making it the UK's largest alternative to sterling.
Next to the piles stands a line of landscapers who have signed up for the leaf blower exchange.
After a little more than six months, 145 Good Neighbour members have signed up to the professor's scheme.
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