We’ve talked before about how nonprofits are using Facebook
to connect with their supporters online, figuring out ways to work around the
“closed door” model of the popular social-networking site. For example, setting up a nonprofit Facebook Page that can be viewed by anyone on the
Web is often more effective than just having a Profile page only other
Facebook members can see.
So, why would you want to limit access to your nonprofit’s Facebook Page? Now that you’ve taken the time and effort to set up a Page, why would you want
to hide it — or certain parts of it — from some potential viewers?
There could be any number of reasons.
Perhaps you want to display some images that might be disturbing to a
younger audience. Or perhaps there’s information related to your
day-to-day operations that you want to share with active supporters,
but don’t necessarily need to put in front of a more general audience.
And sometimes, it may simply be a matter of customizing your Page to
better target a specific audience. Perhaps you have a message for
people in a particular geographic area that just wouldn’t be of much
interest to others — notice of a local event, for example.
Here are 3 tools to control access to your Facebook Page:
1. Age Restrictions for Pages
On your Page’s edit page, scroll down to the “Settings” section at
the bottom and click to edit. You’ll see a drop-down list that lets you
choose an age restriction limit — anyone under the specified age won’t
be able to view the content or find your Page in search or Friends’
profiles.
You might wonder about the “Legal Drinking Age” restriction at the bottom of the options list? As I understand it, this is part of a new Facebook initiative to control the exposure of minors to liquor advertising. For practical purposes, it's useful to know that this restriction sets the
minimum age based on the location of the user: Canadians must be at
least 18 or 19 (depending on the province), and users in the United
States and elsewhere must be 21 or older to be able to view your Page.
2. Targeted Update Messages
When you send an update to fans of your nonprofit Page, you can
target it by geographic location (country), gender, and age range.
Simply check the “Target this update” box when you’re sending out an
update, and a form will let you choose which groups will get your
message.
3. Facebook Markup Language (FBML) Tags
The FBML Facebook application lets you control who sees your content in a great many ways, just by enclosing bits of it in special tags. This option is more complicated — and the on-site Help is less than
user-friendly, as is regrettably often the case with Facebook
applications — but FBML tags offers an exciting potential for doing
some pretty sophisticated audience-targeting!
Facebook gives this suggestion for how one of the FBML tags might be used:
For example, if you have licensed a game for U.S. and Canada users
only, you can use this method to restrict the application to those
countries only, and it will simply not appear to users in the rest of
the world.
If you have specific content you want to restrict, but want to keep
your application generally visible to all users, you can use the fb:restricted-to
tag to restrict the audience for that specific content. This tag
ensures that the content will appear only to users who should view it.
I can see using FBML tags to deliver a custom greeting to Fans of
your Page, while casual visitors from various countries might see a
very precisely targeted invitation to join up: “Here’s what we’re doing
in your part of the world!” Or you can customize your content for a
specific age group, at the same time — what grabs the attention of a
European teenager may not be as compelling to an adult in Dubai, after
all.
You can see a complete list of FBML tags at the Facebook’s Developers Wiki
— and please don’t be put off by the unfamiliar look of these tags!
Click on
the name of each tag, you'll get details about what each one does. Play
around and test a few... I think you'll soon start to get an idea of
how FBML tags might work as a tool for community-building and
promotion.

What do you think? Could the ability to limit access to your nonprofit's Facebook content actually help you to reach out to potential new supporters more effectively?