Salesforce to Salesforce Automation Trigger

Here are a couple links for some Salesforce to Salesforce trigger automation. The first is the basics on S2S that shows how to set it up and a quick snippet of code showing you how to share automatically with APEX. The second is a developer helping another developer work through some problems he had in the code, both of which may be helpful...

http://wiki.developerforce.com/page/An_Introduction_to_Salesforce_to_Salesforce

http://boards.developerforce.com/t5/Apex-Code-Development/Can-you-automate-record-sharing-in-Salesforce-to-Salesforce-with/m-p/324669/highlight/true#M57503