Planet13 - 6:31 pm on Jul 15, 2013 (gmt 0)
"i was doing 10 backlinks for each article a day, i don't think it's an aggressive link building."
This sounds to ME as over aggressive link building. But I am NOT an expert.
all the links were from social bookmarking sites?
How many were nofollow links? How many were do follow links?
What did you use for the anchor text? did you use a keyword for the anchor text?