Accidentally sent an email via GMail? Not to worry -- you can "un-send" it. Well, that is, if you enabled the unsend feature through one of the Google Labs features. There's really no magic to it. What GMail does is basically just delay the sending of your email if this feature is set. You can set the delay to 10 secs, 30 secs, etc.; whatever you think is a reasonable time for you to react if you want to take back what you just sent.
I love GMail and I think its one of the most powerful email program out there. But I was surprised by this article that shows Hotmail has more than double the number of users. I guess it is mainly first mover advantage since Hotmail has been around much longer. But still, its surprising to know that those users have not moved to another free email provider since.
Even more surprising with that same article is that Skype has 590 million users -- that's 90 million users more than Facebook. I previously thought that Facebook was already the 900 lb gorilla, but Skype actually has more subscribers? How can that be? Not that many people use VoIP vs. Facebook. Maybe they count the Skype licenses used on hardphones?
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