faucets - Complete waste of time if you can work for more than a buck/hour
web mining or cloud mining - most of them are scam
hardware mining - need serious $$$$
pools - need hardware = $$$$
Solving captcha - available for fiat and bitcoin. You will earn maximum a buck/hour
Watching videos - maximum a buck/hour
Doing tasks - maximum a buck/hour
Online jobs - skill depending, freelancer.com is for you or fiverr.com
Trading - skill depending could make you money
Investing etc etc...
Absolutely you are right, i don't think any one can explain it like you. Also you are all reply perfect.
But as OP reply, most of the sites are here i never use it, i used only faucets when i stated bitcoin,, but now i suggest to everyone don't do faucets, because it is total time wasting and also mind wasting, so i realize nothing is better except Signature campaign.