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One of the challenges that many post-IPO tech company employees will face is when to sell stock and how much stock to sell once the their stock lockups conclude.Financial advisors can help with this, but some aren't experienced enough with the specific fluctuations of tech companies to create a financially wise strategy. Wealthfront (formerly kaChing), a startup that has been disrupting the investing and personal finance space, is debuting a new tool employees use to test option sale strategies post IPO. Basically, Wealthfront will allow you to test various strategies against the actual stock behavior of a number of tech companies that went public in the past 10 years. The tool is actually embedded below so you can test it out. As we've written in the past, Wealthfront brings the quality investment theories of a fund manager online, at a much lower fee, essentially democratizing private wealth management to the masses. The startup is the brainchild of Andy Rachleff, who was formerly a founder of Benchmark Capital.

All the major map apps like Google Maps, Bing Maps, and Mapquest have walking directions as a standard feature, but the folks at Lumatic don't think they are good enough. It is creating mobile maps designed for pedestrians, cyclists, and people who use public transit. Originally a TechStars company called Omniar, serial entrepreneur Scott Rafer (MyBlogLog, Lookery, Mashery) joined as CEO a year ago. He recently raised a seed round of 0,000 from Joi Ito's Neoteny Labs, 500 Startups, Chamath Palihapitiya, Allen Morgan, Ted Rheingold, and other angels.

The entrepreneurial world loves nothing like a good meme. One of the more recent ones making the rounds from Palo Alto to Paris is that a startup simply can’t get off the ground without a technical founder. Investors, entrepreneurs and tech journalists alike will tell you that if you’re not a whiz kid fresh out of Stanford’s CS program, you are essentially not fundable -- entrepreneura non grata. Well, I am here to tell you that they are right. For now. Soon, however, I believe we’ll see a marked shift in who holds the cards in the startup world.

The enterprise is moving towards simplicity, and this extends to the data center. Nicira, a stealthy virtualization startup with backing from big-name investors, is pulling the curtains back on its disruptive platform that hopes to change the way server and storage virtualization is done. And Nicira is revealing that it has raised with million in funding to date from Andreessen Horowitz, Lightspeed Venture Partners and New Enterprise Associates, as well as individual investors including VMware co-founder Diane Greene and Benchmark Capital cofounder Andy Rachleff. Nicira's NVP is a software-based system that creates a distributed virtual network infrastructure in cloud data centers that is completely decoupled and independent from physical network hardware. Nicira says that it is shifting the intelligence and control of the network away from hardware and into software, simplifying the virtualization process.

Big TV events are becoming an increasingly popular catalyst of activity on social media, with sporting events being at the top of the list. Many of us can no longer enjoy a Super Bowl without checking Twitter every three seconds. Last year, there were several moments during the Super Bowl that set records for the most tweets per second during a sporting event, with a high of 4,064 TPS. The highs during the Super Bowl were no match for New Years Eve 2011 in Japan, which saw 6,939 tweets per second.

Lately, we've been seeing more and more big television events come with an online streaming counterpart. Big sporting and televised events are showing up online, with the 2010 Olympics seeming to be one of the first big global events where both viewers and media publicly recognized the power and potential of carrying an event like that online. For the first time ever, the Super Bowl is being shown online, for free. And it's completely legal. I was going to say "in a brilliant move by the NFL," but this should be default. Showing an enormously popular event like the Super Bowl online should not be a "brilliant" move. It should just be second nature. But, wishful thinking aside, the NFL and NBC both wanted to give home viewers options to watch the big game on the Web, without having to rub elbows with the riff raff at a local sports bar.

Every year, Best Buy runs a big Super Bowl spot, and traditionally they go the route of hiring a big celebrity to hawk their brand message. Last year, it was "the Biebs" and Ozzy Osbourne. This year, Best Buy has opted for something a bit different, choosing to highlight innovators and give more than a nod to geeks in its tech-focused Super Bowl ad. Drew Panayiotou, Best Buy’s U.S. marketing chief, told Bloomberg that the company had initially planned to continue down the celebrity track, but the outpouring of affection for Steve Jobs after the Apple CEO passed away was strong evidence that "Silicon Valley inventors are today’s stars."

Good Old Games is running a .99 sale on multiple Sierra titles including Space Quest and Kings Quest. The games come in packages of three and are compatible with Windows (sorry, Mac users, but here's a consolation prize).

It may now be obscured by all the hoopla surrounding Facebook's going public, but back in November the popular user-generated review site, Yelp, filed to go public and planned to raise 0 million ahead of its IPO (at an expected to http://feedproxy.google.com/TechCrunch billion valuation). On Friday, Yelp filed an amended S-1 that shows that the company plans to list on the New York Stock Exchange under the symbol "YELP."

Back in 2009, my colleague MG Siegler wrote a brilliant piece titled 'Keep It Simple, Stupid,' which delved into how having a simple and easy to use product is a key formula for winning in the consumer tech space. A few days ago, Greylock Partner John Lilly echoed MG's thoughts, explaining that simplicity is quite simply very hard to beat. While this doctrine has been applied tonconsumer technology products like Dropbox, Gmail, Twitter and most famously, Apple; reinforcing simplicity in the product thought process is becoming an ever-present part of enterprise technology as well.