Ok to answer your original questions
Dorsey has explained the origin of the "Twitter" title: ...we came across the word 'twitter', and it was just perfect. The definition was 'a short burst of inconsequential information,' and 'chirps from birds'. And that's exactly what the product was.
https://en.wikipedia.org/wiki/Twitte...0product%20was.
What's sad now is when companies rely solely on twitter for their business rather than an addition to their social media section of traffic platform. Generally social media is a small percentage of the overall traffic source for most companies but is good for branding in a way. Large companies show less than 1.5 to 2.5% of traffic is from social media.