Social-media commerce ramps up as Facebook tests a Buy button and Twitter acquires CardSpring. Meanwhile, Amazon debuts a Netflix-like service for e-books called Kindle Unlimited.
CEO Dick Costolo recognizes the malady: Twitter remains "confusing and opaque" for newbies. If it's going to grow into a long-term success story, Twitter needs to truly open up to the masses.
The next time your friend needs a pick-me-up, send him or her a tweet with a cup of coffee attached.