There are several brands and companies out there who are perhaps new to social media and have no idea how to 'engage' users. They'll blatantly ask you to like their updates and photos, they'll fill up your Facebook wall asking you to share some bullshit links that don't even matter and go about posting supposedly "inspirational" quotes.
A recent Facebook page "Condescending Corporate Brand Page" mocks such companies and brands who don't have the slightest clue what social networking is all about. Their humorous and sarcastic updates will automatically make you wanna "Like" their page.
