Here is an example of infographic where a marketer used a landing page to give access to an infographic to build his list.
The one thing to be aware of is that that you may frustrate people who can then easily find the same content on your blog – they may feel they were ‘tricked’ into giving an email address to get access to information that is freelty available on your website or blog.
This is also an interesting use of an infographic for affiliate marketing. The marketer created an infographic with tips related to the subject of a product he is an affiliate for so that in his blog post which had the details of the infographic he includes his affiliate link. If you use this approach ensure that you reference that you are promoting an affiliate product to ensure that you are compliant with FTC guidelines especially if you are in the US.
He also places the URL of the landing page on the infographic so that if people post the infographic they will help him build his email list.
Have you considered using an optin box to give access to an infographic?
Find another example of using an infographic to build your email list as part of your visual content makreting plan here.