Fitbit, the consumer wearable startup most recently valued at $6B, began trading on the NYSE yesterday. The company filed for a $100M public offering, and that figure spiked by over 50% in the first day of trading to $358M. Seven VCs are cashing out on Fitbit's public debut -- see which firms invested a total of $66M since 2007.

Mark Suster of Upfront Ventures encourages entrepreneurs and investors to do less (seriously). You don't need to be hot, you need to be successful, he says, and success often comes from doing a few things extraordinarily well.

Mayvenn, a hair extensions startup out of San Francisco's East Bay, announced $10M in Series A funding this morning led by Andreessen Horowitz with participation from tennis star Serena Williams, among others. Details below.

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