Jerry Yang is officially resigning as CEO of Yahoo. “I believe the time is right for us to bring in a new leader — someone who will build on the important pillars we’ve put in place and who will take the reins on the critical decisions our company faces,” writes Yang in the official Yahoo blog. Despite his status as co-founder of the company, many within the industry feel that it was his leadership that was holding them back. Under his reign, Yahoo has burned through millions of dollars and let go hundreds of employees. Some are optimistic that Yang’s departure will help revive the now “dead as a doornail” merger talks with Microsoft. According to Yang, he will go back to his old position as “Chief Yahoo” and board member once a suitable replacement is found.

In other news, Google has started adding text advertisements to Google Finance. The ads, which currently sit in the top right hand corner of the page, are the latest in a series of moves designed to bring a little extra revenue. According to Business Product Manager Nick Fox, however, these ads have more to do with content expansion than profit. “Whenever we make changes like these, we carefully evaluate users’ reactions to ensure we’re holding true to our basic principles: that ads by Google should always be relevant and useful,” he writes on the Official Google Blog. “By ensuring that we show the right ads at the right time to the right people, we’ll add value for users too.” Expect to see ads such as this appear on many Google services in the near future, including Image Search and Google News.

In other advertising news, ad network VideoEgg is expanding its reach to the iPhone. Usually confined to the world of social networking, the VideoEgg is unique in the sense that it employs a variety of multimedia tools into its advertising. The ads are expected to work similarly to their social counterparts — a small banner or graphic will appear, enticing users to find out more. Like its big brother, the VideoEgg will only charge clients for iPhone ads that are fully engaged. VideoEgg’s new ad platform for the iPhone will be launched “soon,” possibly in the next week or so.

Elsewhere, SketchUp, the Google app dedicated to all things three-dimensional, has received an upgrade.The new and improved SketchUp 7 features easier object scaling, custom templates, and a ton of other tools designed to please any three-dimensional designer. Those close to Google believe that the new software will aid in the development of several projects, including Google Maps and the upcoming Google Ocean. Unlike most Google-based programs, SketchUp 7 is available in both free and a “for profit” Pro versions.

Finally: Your email account is about to get much more social, thanks to Zenbe. Instead of forcing you to create a new email account, Zenbe consolidates all of your existing accounts into one giant, web-based inbox. It then presents your messages to you in am original, yet distinctly “web 2.0,” fashion. You can also perform a variety of social tasks without ever leaving the service, including checking up on Twitter and Facebook accounts. Zenbe users also have access to ZenPages – a group of tools designed to get both you and your employees organized and in-sync with each other. Easy to use and maintain, Zenbe is perfect for anyone who wants to see what an email program can really do for you and your business.