invite button will be great to write the email address or select friends from social network such LinkedIn and Facebook, etc. It will be easy for Zintro and expertise/Clients, and link it with pointing system for subscription upgrade or giving a certain awards.
All our pages have the Share section that allows you to refer Zintro to others. You may also forward any inquiry notification or copy paste any zintro url and share it with anyone. We have an ongoing referral program where you can get free premium for every confirmed referral and you can also win up to $1000 for a referral that ends up being hired. See more details in: http://helpdesk.zintro.com/knowledgebase/articles/611418-referral-program-share-on-zintro-and-get-up-to