Today's it seems the uptrend is videos, with the 6 video formula, etc
Even if the vast majority still prefer ebooks
OR a mix of them, with also audio
Someone like me provide ebooks and sequence of training via mail,which assure more in my opinion that the lead will open the next emails, not flying away after downloading report
Nowadays also surveys and calculations (as example calories for Weight loss niche) are increasing their popularity.
What are your favourite types of giveaways?