Des Traynor recently spoke at the Content Strategy Forum in London about the importance of which words used in an interface.
The difference between Facebook’s Like and Google’s +1 seems superficial, but ends up influencing the behaviour of the users. Choosing the words you use to define actions in an interface is the most important part of interface design.
In “Getting Real” Jason Fried wrote that Copywriting is Interface Design, yet five years later copywriting is almost always where interfaces fall to pieces.
Thanks for the link guys!