Yesterday I was invited onto CNBC to discuss "Cloud Computing," an incredibly broad topic that somehow got boiled down to four stocks, thanks to the magic of television.

The sector is getting a bit overheated and I have been working out some ideas on how to head and/or short selected stocks. Right now I'm focused on the networking stocks because some of them are getting quite overvalued. CNBC correctly asked me how one could possibly short such a hot sector to which my answer is: hedge.

Anyhow, you can see the clip below. There is also a recap on CNBC.com.

The idea I came up with is that you could hedge with a pairs trade. After sifting through some names and valuations, I have decided that F5 Networks (FFIV) is more overvalued than Riverbed (RVBD), and I like Riverbed better in the long term. So a possible trade here is to stay long Riverbed, and short F5 as a hedge. The premise is that F5 is trading at a richer valuation with 10X sales and Riverbed is "only" trading at 6X sales. I would also note that Riverbed is smaller and growing faster so has more room to grow into its valuation.

BIG SKY, MT -- RightNow Technologies  (Nasdaq: RNOW), a provider of customer-service software, today launched an ambitious new platform to open up the way customer service applications are built "in the cloud."

With the new "Cloud CX Platform," RightNow is honing its focus around improving customer experiences across the Web. With so much marketing hype and confusion built around "cloud computing," this is an important expansion of RightNow's CX (Customer Experience) product that the company hopes will help differentiate itself in the larger cloud services market -- basically any software than can be sold as a service (Saas).

"This is our largest product announcement to date," said Greg Gianforte, CEO of RightNow, at the launch event here this morning. "We're exposing our cloud platform to our customers."

Service-as-a-software (Saas) company Marketo is riding the trend of real-time analysis of customer behavior, making it one of the fastest enterprise software companies in the venture market and a solid IPO prospect for 2011.

The company, a startup founded in 2006, recently surpassed 600 customers in July. Marketo’s revenue is approaching the $20 million level, based on estimates from company sources that the average annual sales per customer is in the $30,000 rage. While the company is not yet profitable, it looks to be a solid IPO candidate for later in 2011 or 2012.

There is a lot of buzz, hype, critical analysis, and downright drivel out there about trends in marketing and ad spending. Some have even asked whether advertising is dead. They're wrong.

Advertising is not dead folks, it has become more vibrant and complex than ever. It's growing in the online world where aggressive metrics and analysis demand instant accountability.

Here's an experiment: Try to go the next five minutes without seeing some kind of add. Ooops, too late, already happened, right?

In the Q4 of 2009, online advertising hit a new all-time quarterly high of $6.3 billion. What's changing about advertising is that its morphing, and the metrics and data used to track it are becoming more sophisticated than ever.

Take the famous "Cog" ad by Honda. Reportedly took $6M and more than three months to develop this high-concept, cross platform viral video ad. It got lots of media attention too: