Whether you are new to Marketo or have been using it for years here is a list of of the resources for learning more about the Marketo integration with SFDC.
 
Initial SFDC Sync 
 
SFDC Fields
 
Marketo Fields
 
Sync Lead to SFDC or Change Owner Flow Step
- Using the Sync Person to SFDC flow step to insert a Marketo only record
 
- Using the Auto-Assignment rule when inserting/syncing a new record to SFDC
 
- Using a queue when syncing a new record to SFDC. Part II.
 
- Setting the SFDC record type
 
- Using the Change Owner flow step
 
 
SFDC Converting / Merging / Deleting Records
- Converting a Lead into a Contact in Salesforce
 
- The results in Marketo of merging Leads or Contacts in SFDC
 
- Using Marketo to merge a Marketo record with a SFDC Lead or Contact record
 
- Using Marketo to merge a SFDC Lead with a SFDC Contact
 
- Deleting a Synced Record in Marketo or SFDC
 
 
Reporting
- Checklist for attribution reporting including - Setting up Marketo and SFDC for attribution reporting.
 
 
SFDC Opportunities
 
Troubleshooting Sync Issues