It's your BFF's birthday, so give her a funny happy birthday card that will make her laugh. Here are 25 of the funniest happy birthday cards for your best friend's big day.

Celebrate friendship in the most creative way with stunning DIY birthday cards that leave a lasting impression! This tutorial ...

Do you want to send your friend a birthday card but don't want to buy stamps? Facebook offers multiple ways to send virtual birthday cards instead.

Or you can choose from a selection of digital birthday cards created by Facebook. Not every friend who is having a birthday will appear as a birthday story in your feed, the company said.

Pat DeReamer and Mary Wheaton-Kroger exchange the same card every year to celebrate each other's birthday — a tradition they've kept for the past 81 years.