integrating my website with CRM 2011

Hi,

I have a company website with html page called "Enquiry Form". Some visitor will come into my website and make product's inquiry through this web forms. All this visitor may become my leads in my sales and their enquiry is the opportunity in my CRM 2011. Can CRM 2011 integrate with my website ? It means the info key by the visitor and directly keep in my CRM 2011 database .

 Is anybody know how can i integrate ? Or is there any website has such info ?

Thanks.