May be this is my shortest blog post ever. The purpose of this blog post is to document about the options available to integrate Sitecore with Saleforce CRM.
There are two ways to integrate Salesforce CRM with Sitecore at the time of writing this blog post.
1) Using Salesforce Connect Module
It is free connector and available on Marketplace. https://marketplace.sitecore.net/Modules/Salesforce_Connect_Module.aspx
2) Using S4S Connector from FuseIT
It is paid and available at http://www.fuseit.com/Solutions/S4S.aspx Like others, if you are not sure which one to use then read below blog post from Adam on community portal. Please read below article before making any choice. https://community.sitecore.net/technical_blogs/b/getting_to_know_sitecore/posts/introducing-salesforce-connect-for-sitecore