Who is Icegram made for? Do I need it?
There are three main groups of users who need a lead generation & customer engagement solution like Icegram:
If you sell products on your website (your own or as an affiliate)
If you have a business model that relies on getting traffic (e.g. for ad revenue, blog)
If you deliver a service (e.g. Web designing) then having a good list building strategy in place will probably be the most important and most profitable thing you do on your website.