Pronet Advertising: 5 Sure-Fire Social Media Headline Formulas That Work: Eg., Increase Your [Blank] within [short time period].
See also, Copyblogger’s List of 10 surefire headline formulas that work and Copyblogger’s 7 more sure-fire headlines.
“Sure Fire” and “that work” seem to magical words too.
Thumbs down to Pronet for being totally uncreative in copying copyblogger’s title.