Joe P

That's too general a statement, it really depends on the industry, product, target audience etc. Also, while cold calls i think seem very very old style, and annoying (Especially for millenials and younger), cold emails and what not, are sometimes crucial.

Cool idea! My phone is full of different travel apps and yeah, it is overwhelming sometimes.

Twitter isn't what it was though, so it's good not to depend on it too much.