SalesForce Integration

Hi All,

I need to integrate my application with salesforce
(www.salesforce.com). does anyone have any idea for what is the best
approach to follow for this integration ??

I have implemented my Web Service APIs using Action Web Service (AWS)
for this integration. So it is required to interaction between these
APIs and Salesforce.

Thanks in Advance. it would be great help if you could provide any
information on same.

Thanks,
Piyush.