You can link any form such as a contact us form or any landing page with a web form directly into CRMBOOST.
To view an example view source for:
http://www.crmboost.com/api/web2lead_sample.fwx
Learn more by searching Web2Lead.
Information from the web form can automatically submit and create a new lead in CRMBOOST, the email can be added to an Email List Group, and you can automatically launch an email campaign or even trigger a text messaging opt-in request.