Digg - A Social Bookmarking Site

# Digg is one of the most important Social Bookmarking site.
# Bookmarking with correct category will give great results.
# We can filter topics according to our interest.
# After login we can submit our links.Here
# We can add friends using the following ways.
-Google GMail Address
-Add Address Book Contacts using Existing Email contacts.
-Yahoo! Address Book
-Hotmail Address Book
-AOL Address Book
-Import an Outlook CSV or vCard file
-Search for Friends from Digg itself.
-Search by email, name, or location.




http://digg.com/submit/