Too many outbound links = PR dillute? Should I go nofollow?

My main blog (check sig link) is around1 and 1/2 year, and it started as a PR 4 in its first update (last october), and steadily climbed down the PR ladder in subsequent updates, until it hit a solid ZERO in last month's update.


With my limited SEO knowledge, I figure this is caused by either/all:

1) the blog was flagged for selling links (I estimate 30%-40% of those posts are sponsored)

2) it was flagged as link farm, since it's a general blog with wide array of topics

3) there's almost 1000 posts, each including at least one outbound link. Even though the blog has gathered a reasonable amount of inbounds, I figure it's not enough to make up for the massive amount of outbound links.


So.... while I can't do much about 1) and 2), I could handle 3) by setting the links to nofollow. Do you suppose that would do any good? Can you think of other suggestions?

 

May I ask you, how do you know that the Blog was "flagged" as a link farm and selling links?

 

My blog been slapped by google due to payperpost, and at PR0 more than 3 years. I'm sure you also experience decrease of pr due to selling links right?

 

I'm not sure outbound links hurt you that much. I've done some studies on this and have had a pr4 survive pr updates and it still is the same. It could obviously be the relevancy of the links going out.

 

Well, I don't really know... I suspect.

Yeah actually that's my main suspicion. I was actually hoping it would be c), so I could do something about it. This blog's pr has been quite flickering over time (4->3->0->2->0).

I feel the same, in fact that's how I came up with option b)