After money, the next most valuable currency is attention. That’s why a SuperBowl commercial can go for millions of dollars and why the Internet is full of web ads. Either you pay for content with dollars or with eye-time.
But, if you offer great content, be it videos, articles or something else, and neither charge nor advertise, you earn trust. Earning the trust and appreciation from a reader or viewer is the most valuable of all.
Give stuff away, the good stuff too, not leftovers. Show you care to help and inform people, and they will be much more likely to support when you ask.