Does yahoo has any connection with delicious? I have been adviced to fill the description part FULLY with content when I bookmark in delicious.com. That will help to get SERP increment in Yahoo or helps to get more traffic from yahoo. Is that true?
i don't think so, i don't think and never heard that yahoo give extra credit to links coming from delicious.
No no. delicious is a nofollow bookmarking sites. They won't help to get ranking in yahoo. I think digg can help bit than delicious.