Now that Bill Gates isn’t running Microsoft day to day, he is primarily focused on the Bill & Melinda Gates Foundation, which is tackling big hairy problems like malaria. But apparently he still has enough time to moonlight as a blogger.

Check out Gawker Media’s Gizmodo, which features a post penned by Gates reminiscing about Microsoft (MSFT) in the good old days, way back in 1979 (the photo below is actually from 1978). Apparently, Gates submitted the 490-word item without prompting from the Gizmodo guys; I’m trying to find out if Gawker owner Nick Denton will be cutting Gates a check.

The site is the work of Peter Rojas, who helped build Gizmodo and Engadget, and Ryan Block, who took the torch from Rojas after he moved on. Gizmodo and Engadget are the best known and most powerful of the new generation of gadget sites, which makes Rojas and Block revered by the gadget gang. That’s why we’ve been hearing about gdgt, in dribs and drabs, for many many months.

But as well known as Rojas and Block are, they’re still going to have to work hard to make a dent in the crowded field. In addition to the two blogs they created, the gadget spectrum includes everyone from staid players like CBS’s (CBS) CNET to rumor sites for Apple (APPL) obsessives, like MacRumors, to sites for real obsessives, like the handful of people who still own Palm (PALM) Treos. (And, of course, there’s All Things Digital’s Walt Mossberg, who bestrides all of this like the colossus he is, and is also my boss. Hi, Walt!)

Rojas and Block argue that their site is different because it’s not going to be driven by editors but by the site’s users, who will gather there to swap info, stories, rumors, opinions, etc. In other words, Facebook for gadgets, though I gather they’d recoil if they heard that. The other pitch, though they won’t spell this out, either: Their site takes a bunch of features and content that you can find other places and presents them in a better way.

There’s a bunch of nifty features, like a gadget-finder that lets you find products via specs instead of brands, and the site seems to be pretty slick. But it’s better if you have a look yourself instead of having me describe it. And gdgt.com won’t really hit its stride until actual users start using it. I look forward to hearing what they have to say about my upcoming phone dilemma: iPhone 3GS, Palm Pre or Blackberry Tour?

But as much as Rojas and Block argue that this is a community site, it’s their names and reps that have people interested in the project. And that’s what has convinced investors to plow money into an ad-supported Web site in an era when the economy sucks and there are way too many ad-supported Web sites.

The duo won’t discuss funding, but I’m told that last fall they were discussing investments of up to $1 million, but ended up taking less than that via a group of VCs and angel investors. I don’t have a complete list of investors, but people familiar with the company tell me that early-stage investor True Ventures led the round, which also included New York-based incubator Betaworks and Mahalo’s Jason Calacanis.

Calacanis’s name will resonate with longtime followers of the tech blog world: He was one of the founders of Weblogs Inc., which created Engadget as a rival to Gawker Media’s Gizmodo, and hired Rojas away from Gizmodo. Calacanis eventually sold Weblogs Inc. to Time Warner’s (TWX) AOL for a decent pile of cash, some of which I believe ended up in Rojas’s lap.

Click the image below to see a screenshot of what gdgt’s homepage ought to look like.

Theoretical questions no longer. At least for people who visit New York’s Lower East Side for the next few days.

That’s where Gizmodo, Gawker Media’s crazily successful gadget blog, has set up a gallery of odd, cool and awesome stuff. For a very limited time–it opened on Thursday and it runs through this Sunday.

Head Gizmodo geek Brian Lam gave me a tour of the gallery yesterday, and it’s great fun: In addition to the iPhone prototype, there’s a handful of other cool things from Apple (AAPL), including a 20th anniversary edition Mac and a prototype of an Apple Tablet machine that never saw the light of day.

So if you’re at all interested in gadgets, or the people who are, drop on by 151 Orchard Street. It’s free, but they’re happy to accept Toys For Tots donations (which also qualifies you for some cool giveaways).

If you can’t make it, you can see still images on Brian’s site, or you can check out my first attempt at Web video-making with the mandatory All Things Digital Flip camera. I’ve added a few subtitles to compensate for the fact that Brian is soft-spoken and the dudes playing “Call of Duty” in the gallery were loud. The fact that the camera is shaky and that the camera-holder says “awesome” a lot is entirely my fault.

[Image Credit: Gizmodo]

Yes, this is the third post I’ve written today about Gawker Media’s Nick Denton, who seems to prefer to get all of his news out at the same time.

But briefly:

• Denton has put Consumerist, his, um, pro-consumer site, up for sale.
• Denton is folding Valleywag, his Gawker-for-techies site, into…Gawker. Editor Owen Thomas will keep his job, and essentially become Gawker’s man in Silicon Valley. Writer Paul Boutin will contribute some stories, but likely fewer.
• Denton has more moves to come. Conveniently, he has provided a playbook for them via his post this morning, in which he spells out what Internet publishers should do in the face of a cratering ad market. Educated guess: If you sell ads for Denton, or work for one of his most successful titles (Gawker, gadget site Gizmodo, videogame site Kotaku), there are decent odds you will get to continue doing so in the future. Everybody else, all bets are off. Then again, that’s the same position that all those with a job in media finds themselves in these days. Cheers!

A year ago, the conventional wisdom said that the online advertising market would still grow in an economic slump because online ads were cheaper and more effective.

And they are. But if the slump is big enough– like the one we’re in now–then all bets are off.

Which is why there’s no longer any conventional wisdom about the future of online ads. Two data points, and one anecdote:

• J.P. Morgan (JPM) Internet analyst Imran Khan has reduced his projections for ad growth for the second time since September. But he’s still projecting growth. In fact, Khan sees overall spending, fueled by search ads on Google (GOOG) and Yahoo (YHOO), growing 13 percent in 2009, down from a previous projection of 19 percent. But he thinks display ads will fare much worse, noting U.S. spending on display will only grow six percent in 2009, down from his earlier forecast of 16 percent.
• Ad network optimizer The Rubicon Project reports that the average price for an online ad at “thousands of sites and 270 ad networks” dropped 11 percent in the last quarter. But since it can also find evidence of prices increasing at some sites–news and reference sites, for instance, increased prices 36 percent–Rubicon argues that things aren’t so bad after all.
• Gawker Media publisher Nick Denton thinks everyone who doesn’t see misery next year is delusional, period. The man behind sites like Gawker, Gizmodo and Valleywag happily offered this insight at the Silicon Alley Insider/Founder’s Club event last week, which was packed with digital movers and shakers. All of them should be terrified, he said, charmingly: “Anyone who isn’t prepared for ads to go down 40 percent is crazy.” Obligatory disclaimer here: Denton is always seeing doom just around the corner. But he’s very convincing.

Want a (slightly) more upbeat spin? Here’s Khan’s executive summary:

* Overall ad budgets continue to weaken. Since we reduced our estimates on September 4th, we have seen a further slowdown in the economy, particularly in the last two weeks of the third quarter. Weakness continued into October and spread from the US and UK throughout continental Europe and Asia. Additionally, dollar strength was greater than expected which will further depress growth rates. We are now basing estimates on a $1.25 exchange rate vs. our prior base of $1.40. Our updated model calls for total online global advertising growth of 25% in F’08 and 13% in F’09 vs. our prior estimates of 28% and 19% Y/Y growth respectively.

* Deterioration of display advertising is more pronounced than expected. Our channel checks are showing that sell-through is declining. Additionally, so far CPMs for premium inventory are flat to slightly down. Looking forward, we think CPMs will remain depressed and sell-through rates will worsen.  As a result, we are lowering our F’08 and F’09 domestic display estimates to $7.95B (11 percent Y/Y growth) and $8.45B (6% growth) from $8.15B (14% Y/Y growth) and $9.43B (16 percent growth). We are now modeling F’08 global display ad growth of 14% Y/Y vs. our prior estimate of 16% growth.

* Search performance held up in 3Q but we expect ad budget cuts to bleed through. We continue to see performance-based advertising holding up better than banner advertising. Long tail advertisers continue to allocate additional dollars to search. However, keyword price inflation is moderating. Additionally, we think marketing spend pullback in some segments including travel, telecom, autos, and retail is worsening. As such, we are lowering our domestic F’08 and F’09 search growth estimates to 23.4% Y/Y and 17.3%, respectively, from 27.4% and 25.5% Y/Y growth. We are modeling F’08 global search ad growth of 34% vs. our prior estimate of 36% Y/Y growth.”