Are there any websites which are already integrated with salesforce ?

Quick and corresponding response much appreciated .

How to accomplished any salesforce user can upload files on to their account by only submitting User Name and Password in ASP.NET ,
so far I've learnt that it's not possible without security token but I want to generate code for any user from any country with the elimination of security token. A detail explaination with some coding examples will save my day

Any related help much appreciated
Thanks

Are there any websites which are already integrated with salesforce ?

Quick and corresponding response much appreciated .

How to accomplished any salesforce user can upload files on to their account by only submitting User Name and Password in ASP.NET ,
so far I've learnt that it's not possible without security token but I want to generate code for any user from any country with the elimination of security token. A detail explaination with some coding examples will save my day

Any related help much appreciated
Thanks