Tracy,
is there any way to automate the dedupe process? I ran a dedupe rule to find my duplicates, but manually going through thousands of contacts (10K in our case) is quite an ordeal. I've been synching the 'Last modified date' field to get a sense of which one of the contacts in ELQ is the most recent one, but the only way I can think of to solve this issue, is to merge the dupes in SFDC, keep track of who got merged and then afterwards delete the duplicate contacts in ELQ. But again, this process would be very labor intensive and could only happen one record at a time, so any recommendations are appreciated!
I want to add that I'm using the email history synch now, but it's not helping with all the already existing dupes.