As of 25th May 2018 the General Data Protection Regulation came into effect,  this has had a large impact on the way marketing teams and organisations can manage their consumer data. Any organisation using marketing automation tracking is required to ask consent of from the consumer as well as provide transparency on how the data will be processed.
A lead magnet (a.k.a. an optin bribe) is something amazing that you give away for free in exchange for an email address. This doesn’t have to cost you anything to create; most lead magnets are digital materials like PDFs, MP3 audio files, or videos that you can create yourself at minimal or no cost. It can be absolutely anything you want, so long as it provides value to your visitors for free.