Does do-follow no longer matter?

All back links almost nofollow but you asked that does do follow no longer matter.
do follow is very important matter now a days but i think thousands of social bookmarking websites are do follow this is positive point to increase your website traffic and for create back links so far.

if you submit your link here digg.com your link will be do follow the reason is that here's million of people visit every second.

Hope you understand.
Thanks

Google wants you to believe nofollow links have no value to hopefully curb spamming......and keep them away from youtube.