Facebook is testing a new design for its self-serve ad tool that presents users with a list of pages, apps and other potential ad destinations they’re connected to.

The social network has been experimenting with designs and features of its ad tool in order to make it more intuitive and useful for less experienced advertisers. Although Facebook introduced a number of new options for large advertisers earlier this year, the company also seems to be trying to do more to support the small- to medium-sized businesses who want to advertise on the site.

The latest design, seen above, includes icons and names of all the Facebook objects for which a user has admin privileges. There is also a new “Getting Started” sidebar module with sample ad destinations. Previously, this first step simply included an empty search box called “Destination,” as seen below. The new design is likely to help users find what they want to advertise more quickly. From there, the tool works basically the same as we covered in our walkthrough here. Overall, the tool presents Facebook advertising in easier-to-understand terms and simplifies the steps to starting a new campaign.

Facebook hired engineers and marketers this week, according to its LinkedIn feed and Careers page. The company also appeared to hire a manager of State and Local Public Policy – California and legal counsel in its India office.

As we covered Tuesday, the company also hired the team behind Android photo sharing app Lightbox.

Facebook priced its initial public offering at $38 per share, which is at the high end of the range it proposed on Tuesday. The price will raise $16 billion for the company and the social network a valuation over $100 billion.

The company plans to list 421.2 million shares of its common stock on the Nasdaq on Friday under the symbol FB. Facebook is offering 180 million of its shares. The remainder of the shares come from existing stockholders — a number of whom decided Wednesday to sell a greater proportion of their shares. Additionally, IPO underwriters have the option to purchase up to 63.18 million additional shares of Class A common stock to cover over-allotments, which it they are expected to sell based on demand seen during Facebook’s roadshow.

The IPO will be largest ever for a technology company and the third largest overall in the U.S., behind Visa and General Motors.

Last month, the social network reported revenues of $1.058 billion for the first quarter of the calendar year — a 45 percent increase from the first quarter last year, but 6 percent less than the previous quarter. Facebook, which was founded in 2004, had $1 billion in net income on $3.71 billion in revenue in 2011. The company generates the majority of its revenue from advertising, with about 15 percent coming from its payments business. Facebook collects a 30 percent cut of revenues from digital and virtual goods purchased with its Credits currency.

Music video service Vevo has doubled its total registered users as a result of switching to Facebook-only login and adding more personalized features in March, Vevo CEO Rio Caraeff tells us. The company is also looking at other ways to partner and integrate with Facebook, including advertising.

Vevo gained as many registered users in 60 days as it had previously taken two years to acquire. Although Caraeff won’t reveal the exact total of registered users, he says it is in the single-digit millions. Vevo has also seen a 150 percent increase in referrals to its website from Facebook and a threefold increase from Facebook mobile to Vevo’s mobile apps since March.

“The results have been great,� Caraeff says of the company’s Facebook integration. “It’s been absolutely the right move for our business.�

In January, Vevo launched integration with Facebook Open Graph so that users can automatically share their viewing activity with friends on the social network. In March, it overhauled its website and eliminated the option to log in with services besides Facebook. Although Vevo doesn’t require users to log in to watch videos, it has added a number of features for those users who do. For example, it will create personalized playlists based on users’ Facebook activity and profile information. The company also launched a Facebook canvas application to give users the option of searching, viewing and sharing videos directly from the social network.

Caraeff would not comment on Vevo’s current business arrangement with Facebook besides saying that Vevo is whitelisted to sell and serve ads within its canvas application, as seen in the screenshot below.

“We hope to have an even bigger business of ads with them in the future,� he says of the social network.

For ads served within videos hosted on YouTube, Vevo gives 35 percent of revenue to Google. That means when Facebook users share YouTube links to Vevo videos on Facebook and their friends see an ad before the video plays within News Feed or Timeline, Google is the one that collects ad revenue, not Facebook.

Facebook has significantly expanded and diversified the list of third-party apps and websites that integrate its platform since launching Open Graph in September 2011, but so far it hasn’t taken any steps to directly monetize them. Besides the likely expansion of its Credits payment system, of which it takes a 30 percent fee, Facebook could also introduce an ad revenue sharing model.

Rumors that Vevo would end its deal with YouTube and switch to one with Facebook began to circulate earlier this year after some outlets reported that Vevo was having meetings with representatives from the social network. Caraeff says Vevo has a good relationship with both Google and Facebook, and that the company’s strategy is to be ubiquitous across platforms and devices.

“We want to have music wherever the fan wants it to be,� he says, pointing out that Vevo is available through apps on connected TVs and it syndicates content on a number of other sites. “We’re not telling our audience where to go and we’ve never tried to say our videos should not be available somewhere.�

Still, Facebook is a powerful driver of traffic and engagement, and Vevo and other apps and sites are looking for ways to benefit. Caraeff tells us he’s interested in doing even more integration with Facebook, though he could not discuss the specifics of any potential new features.

“We want to integrate Facebook more natively with features that are available now or in the future,� Caraeff says. “What we really want to do is enable a continuous-playing, long-form experience.�

Vevo has seen a 750 percent increase in the number of stories being published to Facebook and a 50 percent increase in Likes and comments on those stories since March. The mobile integration has led Facebook to become the largest traffic driver to Vevo’s app download pages. Caraeff says the company is also working on an HTML5 version of its app, which will allow visitors from Facebook and other mobile environments to watch Vevo videos without first downloading a native mobile app.

Vevo currently has 770,000 monthly active Facebook users, according to our AppData traffic tracking service.

We now know that Facebook´s initial public offering will open at $38 per share (tomorrow morning. But what price will it reach at the end of the trading day?

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New Career Opportunities Daily: The best jobs in media.

We might as well get all of the infographics related to Facebook´s initial public offering out of the way before its launch tomorrow morning, and this one from KissMetrics contains an interest chart near the bottom.

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New Career Opportunities Daily: The best jobs in media.

Don´t you just love a good infographic? Earlier today, we spotted this interesting visual from The Wall Street Journal highlighting major stakeholders that have changed the number of shares they plan to sell when Facebook´s initial public offering launches tomorrow.

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New Career Opportunities Daily: The best jobs in media.

The much-ballyhooed Facebook initial public offering will open trading Friday morning at $38 per share, the top end of the range the social network filed with the Securities and Exchange Commission earlier this week, CNBC reported.

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New Career Opportunities Daily: The best jobs in media.

Do you remember all that tax money Facebook Co-Founder Eduardo Saverin was set to save on Facebook´s initial public offering by renouncing his U.S. citizenship and establishing residency in Singapore? Not so fast, said Sens. Charles Schumer (D-N.Y.) and Bob Casey (D-Pa.).

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New Career Opportunities Daily: The best jobs in media.