I was just reading a very interesting case study so I thought I would share.
In short, Mention implemented the Clearbit API to auto finish form conversions to great results.
The Clearbit Enrichment API is simple: you send it an email address, and you get back rich data – everything from location, job title, and employer to Twitter handle, bio, and company information. Many customers use this API to qualify and segment leads or bolster user data inside their product, but Guillaume had a different idea.
Make sure you look at the study and think about how you can implement it in your business.