The folks at Facebook are expanding their ad count. The popular social network and current “it” trend has added specialized advertisements to the “Pages” section of its site. Like the other Facebook ads, the new ads are designed to be completely unobtrusive and more importantly, fit the user’s tastes. “One of our goals at Facebook is to be sure our advertisers can reach the right audience anywhere on the site,” writes the Facebook team on their official blog. “We thought it was important to expand the opportunities for your ads to be shown across another popular section of the site.” The new ads are up and running now.

In other news, Google CEO Eric Schmidt has a few interesting things to say about Twitter. Speaking at the Morgan Stanley Tech Conference Tuesday, Schmidt says he sees Twitter as “sort of [a] poor man’s email system.” He also questions the microblogging service’s ability to grow and change with the times. “To me, the question about companies like Twitter is: Do they fundamentally evolve as sort of a note phenomenon, or do they fundamentally evolve to have… all the [tools] that traditional email systems have?” Doubts aside, he still feels that the base Twitter idea is a solid one. Says Schmidt: “Twitter’s success is wonderful, and I think it shows you that there are many, many new ways to reach and communicate, especially if you are willing to do so publicly.”

Elsewhere, YouTube has found themselves in a bit of a pickle. Each week, millions of videos are watched by millions of users. And yet, the handy little tools and gadgets that accompany these videos are cast aside by the public. This is where the new “Adopt-a-Feature” promotion comes in. Similar to the famed “Adopt-a-Highway” program found on many of America’s roadways, Adopt-a-Feature connects caring users with features that would have otherwise been ignored. The process is simple: all you have to do is pick a topic, make a video based on said topic, and send it in. If your video is chosen, it will be featured prominently in the YouTube Help Center for all to see. Only together can we make sure that these features get the respect that they so richly deserve. Deadlines for the videos are March 17^th.

Next: Everyone has at least one application that they simply cannot live without. You know everything about your favorite app, from its quirks to its special features and everything in between. There comes a time, however, when you have to leave your digital friend behind. After all, just taking it with you to school or business functions isn’t possible … right? It is now, and it’s all thanks to Xenocode. Xenocode is an interesting new service that allows you to access versions directly from their site. All of the major players are available, from the usual suspects (Firefox, Opera) to programs that would normally be ignored by a service like this (Internet Explorer). Xenocode also lets you load the program directly to a flash drive, allowing you to essentially ignore “pointless” little things like installation and OS-related slowdowns. While Xenocode is an extremely handy service, don’t expect the experience to be perfect. Newest version of the software in question is usually not available, and the actual program speed is sometimes dictated by the speed of your flash drive or Internet connection. Minor foibles aside, Xenocode is a great way to bring your favorite programs with you where ever you go.

And finally: From Nintendo DSes that are programmed to run Linux to GPS devices that can run the classic computer game Doom, we’ve seen our fair share of technological ingenuity come down the pike. It all fairness, however, this one easily takes the proverbial cake. Thanks to a team of hobbyists that call themselves “Apple on iPhone,” Apple’s System 7 operating system is now supported by the iPhone. The OS has all of the features that Mac users have grown to love over the years, including support for file sharing, the first appearance of Quicktime, and MacDraw. While a good portion of the work is finished, those who want to turn their $300 phone into a nearly twenty-year-old Macintosh will have to wait a bit longer. “We hope to be launching the code soon, but we are wanting to complete something before fully releasing stuff,” writes the team. The actual launch is unknown at this time.