FBML deprecated: update your signup forms on Facebook

If you have email signup forms on Facebook, you might want to take a look at this: the Facebook developers site tells that FBML, the Facebook Markup Language, will be deprecated as of June 1st this year.
This gives you just over a month to update your signup forms on your Facebook pages: if you used FBML, it will be broken after June 1st. Use HTML/CSS and Javascript for the signup forms on Facebook to make sure they will work after that date.
The page refers to the Javascript SDK which should give some insight into making a signup form for Facebook which can be implemented without any hassle.
If you’d like some tips on creating good signup forms, have a look at Sign up form design – best practices & design review. Pretty good examples and commentary on several signup forms on famous websites.
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