Can anyone tell me...why popular digg more than other social bookmarking sites like delicious or rediit...etc. ?
Book marking in digg is more useful then other because it is very useful in web promotion. when you book mark in digg your book mark show on google within 6 minute. Through the digg you can divert huge traffic on your site.
The only reason i can say is huge traffic. One can gain good amount of traffic from digg as its really a good social bookmarking site having high page rank.
I think digg becomes popular through word of mouth. It also becomes popular because of its voting system which makes people hooked to submit their stories.
In my past i use it, but no traffic from here..now i m not using digg, i don't know why people use it.