1. Social media is hot, hot, hot--if you didn't believe it, check this: Financial giant JPMorgan [3] and angel investor Chris Sacca have joined to buy around 10% of Twitter [4]--directly from current shareowners. They spent $450 million on shares, which values the tiny social media firm at around $4.5 billion. Twitter's not even looking for a new round of VC funding--the financiers merely saw immense promise worth the effort.

2. It's Apple week again, with the iPad 2 refresh due to be revealed Wednesday, so rumors are coming fast: New leaked parts suggest something surprising--Apple may be poised to announced a white iPad 2 [5] alongside the black one. Fascinating, since the white iPhone 4 has been so delayed by technical errors it's not arrived yet. Oh, and for an iPhone 5 rumor check this: Edge-to-edge, 4-inch screen hardware may have leaked [6].

3. In other Apple news, it's thought the firm will reveal a new hands-on support network for small to medium businesses this week dubbed Joint Venture [7]. This will see special support at Apple Genius Bars and a dedicated support line for companies deploying Apple hardware in their enterprise--from Macs (with MS Exchange support approved by Apple) to iPads. It also confirms our thoughts on Apple's push to [8] enterprise [9] markets.

4. Happily moving forward with the same confidence that allowed it to reject a multi-billion dollar takeover deal from Google, Groupon is opening its doors in China [10] now, with Gaeopeng.com. Tencent Holdings, China's biggest Net company is among its financial backers, and the goal of the firm is obvious: Grab as much as possible of the roughly $80 billion online-spending market of a booming China.

5. Facebook's tweaking it's ubiquitous "like" button with a whole new, powerful angle--it's now effectively a "share" button [11]. Instead of merely relaying to your friends that you "liked" a website or service, the event will now result in a thumbnail and tiny extract of the target page in your news feed, and the ability to comment. Since "like" is way more successful than "share," it's a big move by the social media firm to sew up more mindshare.

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