3 methods for writing effective headlines

The article Improve Your Search Engine Optimization Strategy By Writing Compelling Headlines! provides 3 methods for writing effective headlines:

The question versus the statement headline
When you ask a question you are forcing the reader to ask themselves something, you’re not simply making a statement which is forgotten immediately, you’re forcing the reader to think.

Problem versus solution headline
When you pose the problem to the target audience rather than give the solution you make the headline even more powerful to the reader. You also target the audience far more specifically....

Curious versus non curious headlines
By adding simple words like “these” you imply more than one reason to read on. Numbers could also be used for instance “3 reasons” or “5 simple facts that can save you money.” You could also use secrets for instance “do you know the biggest secret.” By adding a curiosity factor you really get the reader hooked into reading about your offer.