Sunny skies are here for Ausra, the solar thermal company backed by Kleiner Perkins and Khosla Ventures. The company is looking for a buyer, and it's already talking to three, according to a report by Reuters. Everything is up for grabs, from a majority stake in the company to 100% of it, and the back-and-forth going on is at a "very aggressive level."

The businesses looking to pick up Ausra are said to be global power generation conglomerates but haven't been named yet. So, the clean energy company would be a way for one of them to diversify.

KaChing! KaChing!

It only makes sense to call a company a sound you like to hear. This is exactly what CEO and co-founder Andy Rachleff must have had in mind. His new company -- kaChing, of course -- is backed by Marc Andreesen (a name often associated with that sound) and Jeff Jordan, the CEO of OpenTable (NASDAQ: OPEN), two guys who usually do a solid job of backing winners. But, they've taken on a challenge by backing a company in the financial services industry.

The amount of investable assets available to venture capital funds has basically been a growth story since 2003. Dry powder slipped 7% in 2004 and 10% in 2008, but increased in every other year over this period.

Now, the dry powder number sits at $155 billion, according to alternative investment research firm Preqin, just off its December 2007 peak of $160 billion. The big number, however, masks a wide range of market situations for venture capital funds. Dry powder levels vary by strategy and region. To get a sense of what's going on behind the scenes, check out the five facts below about venture capital dry powder.

Well, what have you done for me lately, right? Investors, less than thrilled with the returns that venture capital funds have been delivering, are taking their money and going home. The number of new funds launching has thus dropped precipitously, and it looks like the industry will be smaller, with fewer players, according to the National Venture Capital Association.

Of course, the next wave will attract many to ride it, and that could be enough to turn the tide (once again).

While the private equity industry is massive today, it is still a recent innovation. In fact, the industry got its start about 40 years ago.

And one of the pioneers is Lionel Pincus, who created Warburg Pincus. Unfortunately, he Pincus died over the weekend. He was 78.

With an MBA from Columbia, Pincus began his career on Wall Street as an investment banker (with Ladenburg, Thalman & Co.) No doubt, it was an extremely helpful experience, in terms of learning corporate finance and building a strong network of contacts.

The clean technology wave just got a little bigger. This tends to be a side-effect of interest from billionaire investor George Soros. And, as usual, it's more than just money; it's more than just a return. Soros, yet again, is trying to save the world. Interestingly, the bold move was announced at a meeting on climate change sponsored by Project Syndicate – an international association consisting of 430 newspapers from 150 countries (and thus with clear ties to the past, rather than future).

The investor and founder of Soros Fund Management LLC is planning to put $1 billion into clean-tech opportunities using what he calls "rather stringent criteria," which involves being "profitable but should also actually make a contribution to solving the problem [i.e., of clean technology adoption and proliferation]." Soros didn't provide any other details on the nature or scope of his investments.

Investors have flocked to foreign exchange trading over the past 10 years, and the venture capital community is ready to grab a piece of the action.

Two companies -- Currensee Inc. and Tradonomi LLC -- are angling for central spots in this emerging trading community, and several funds are placing pretty big bets on their success. Currensee has a social network for forex traders, while Tradonomi's move was to create a game-like user interface to make it easier for would-be fortune-makers and thrill-seekers to trade foreign currencies.

We're tired of bubbles, right? Anyone 30 or older has lived through two big ones so far, with a brief period of prosperity separating the decimation of dot-com largesse and mortgage-fueled paper wealth. It could take until 2014 for the jobs lost to be replenished, and there's little reason for optimism.

So, with the economy in the tank, we can focus elsewhere -- maybe on saving the planet. If we can't put green in our wallets, maybe we can add some to our lifestyles. Or, you could do both. Green technology could be the next boom in the United States, even if we do lag some parts of the world, and investing in clean solutions is really nothing other than investing in the next big thing. Even if you don't give a damn about climate change (or don't think it exists at all), the green market could likely become your employer -- or trigger the economic growth that will create your next job.

Some signs are visible already.

Venture capital investment in clean technology grew 10% from the second quarter to the third this year. According to a report by the Cleantech Group and Deloitte, 134 companies received investments of $1.59 billion – up from $1.2 billion in the second quarter. The sector's upward trajectory continues, with last quarter marking the second in a row of double-digit growth. In the first quarter of 2009, venture capital investment in cleantech companies hit a low of $1 billion.

The strong third quarter has made the cleantech sector the largest in the venture capital business, according to the Cleantech Group, pulling ahead of biotech. Twenty-seven percent of venture capital funds invested in the second quarter of 2009 went to cleantech companies – up from 3% at the beginning of 2004.

Twitter's much-hyped $100 million round of financing closed Friday, cementing the company's (illiquid) value at $1 billion, though Twitter itself would not confirm the amount. T. Rowe Price and Insight Venture Partners participated in the deal, as expected, which is believed to be a precursor to an eventual liquidity event -- such as an IPO or acquisition.

In a way, it feels like 1999, where you have investors rushing to invest in high-profile companies, despite the absence of revenue models. Yet, Twitter may not be as bad off as the traditional folks think, especially if the goal is an acquisition. The company does say that it's pursuing revenue via corporate accounts. But, it's been saying this for a while, and we haven't seen anything yet. Also, it's leaving open the possibility of running ads on the site, though this wouldn't happen within the next three months.

Twitter is on the brink of nabbing another $100 million in financing, according to the New York Times. This would value the company at $1 billion, bringing back memories of outrageous valuations without corresponding revenue.

Insight Venture Partners and T. Rowe Price are said to be involved in the transaction, which would put them with Spark Capital and Institutional Venture Partners as investors in the popular microblogging site.

GreenBytes, a unique data storage appliance company, has just received an $8 million Series A round of investment financing. Battery Ventures completed the deal, which provides fresh resources for the Rhode Island-based energy-efficient technology company.

Founded in 2007, GreenBytes offers network attached storage (NAS) and storage area network (SAN) solutions that reduce energy consumption, providing a cost savings opportunity while also addressing corporate social responsibility considerations.

Following his departure from Google (NASDAQ: GOOG) on Friday, Kai-fu Lee announced via Twitter that he was planning to launch a new venture fund. Today, he revealed the guts of a $115 million venture capital company that is focused on angel-round financing.

The company, Innovation Works, hopes to launch five successful start-ups a year in China. In addition to investing money in hot prospects, Innovation Works will act as an incubator for the businesses it backs. This approach doesn't exist yet in China.

It looks like Skype is going to wind up with a new owner. Internet auction company eBay (NASDAQ: EBAY) owns Skype now but is said to be selling the online telephony provider to private investors.

Andreessen Horowitz, a recently formed venture capital fund with Netscape co-founder Marc Andreessen at the helm, is said to be a likely participant in a transaction. Index Ventures of London and Silver Lake Partners are also rumored to be involved.

Since launching in September 2007, Mint.com has become a dominant player in the online personal finance space. In fact, the company has raised $14 million in venture capital from DAG Ventures, The Founder's Fund, Benchmark Capital, Shasta Ventures, First Round Capital, and Sherpalo. It was preemptive round; that is, Mint.com didn't seek out the money. Nice, huh?

So, to get the latest, I had a chance to talk to Mint.com's founder and CEO, Aaron Patzer. He said that the site is attracting 100,000 new registered users per month. In all, the user base is over 1.4 million (even President Obama's CTO, Aneesh Chopra, is an avid member). What's more, Mint.com is currently tracking over $175 billion in transactions and $47 billion in assets.