Every Facebook Page or application profile that has more than 1,000 fans as of May 31, 2009, can get one username-specific URL associated with the page. If there are multiple administrators of a Page, the first username selected by any one of the administrators will be associated with the page. If you're an administrator, you can get more details here.

For your application profile, we recommend you choose a username that closely matches the name of your application. For a Facebook Page you maintain to promote your development company, you might choose your company name as your username.

Facebook Pages may only be used to represent real entities, and may only be created by authorized representatives of the Page subject. If you believe your Page was removed in error and you can confirm that you are or officially represent this entity, please report this here.

News Feed is a feature that tells Facebook users about their friends’ recent activities on the site. The News Feed is the first thing users see on their home page when they log in to their accounts.

News Feed drives the viral spread of information on Facebook through networks of friends. It can cause a snowball effect – as something becomes more popular, more people hear about their friends doing it through News Feed, and then do it themselves. This, in turn, causes even more people to hear about it through News Feed, and so on. This can result in literally hundreds of thousands of people hearing about something in just a matter of days.

Harnessing the power of News Feed is crucial to accruing a high number of supporters and spreading your message to the most people on Facebook.

To change the tab which shows by default on your Page, simply click the "Settings" button which appears below the blue Share button on your Wall tab. Then, adjust your settings appropriately.

You do not need to submit your app to the directory in order to add it to your Page. Go to the app profile page, click the "more" link, then "add to page".

If "add to page" isn't there, you haven't enabled your app for Pages, and you'll need to do that first.

You can target your ad to current fans of your Page using Connections targeting. To do so, simply look for the "Connections: Target users who are connected to:" field in the ad targeting interface. As you begin to type the name of your Page in the field, the names of Pages and other eligible content you manage on Facebook will appear in the type-ahead. This targeting would be useful for advertisers trying to reach their current fans about things like special offers or new products, for example.
This targeting option can also be used to reach members of a Group you manage, or those who have RSVP’d to your Event or authorized your Application.

Usernames allow public entities to easily promote your presence on Facebook with a short URL (http://www.facebook.com/companyname). This username can be used in your marketing communications, company website and business cards.

No. Once you have claimed a username by clicking the "Confirm" button, it is not possible to edit it, or to transfer your username to a different account on Facebook. Additionally, when an account is removed from the site, its username will not be made available to other users for security reasons.

If you would like to create an RSS Feed for your Facebook Notifications you can do so by going to your Inbox and selecting the Notifications tab. On the following page will be the option to "Subscribe to Notifications" on the right. After clicking "Your Notifications", Facebook will generate an RSS Feed that you can save to your bookmarks folder and view in your browser. You will now have an auto-updating RSS Feed that alerts you of important things on Facebook involving your account (i.e. Wall posts, photo tags etc).

You can control the content that appears on your home page using the filters on the left side of the page. You can filter by application type or by Friend List. You can also reorder filters by dragging your most used ones to the top of the left column.