For weird reason, my pagerank is now gone. I come a long way from PR2 to PR3 then to PR4 down back to PR3. Now it has none. I have no paid link and all the links out there is either my website (work related, and my other websites) or friends website, which shows my link are legitimate. But I do have some link exchange with friends, that I doubt is penalizing me.

I did some research and it really shows that most website which I am link to or linked to me are having their Pagerank dropped, and Google is really tracing those who are buying/selling link and I am seeing a lot of old time bloggers losing their pagerank mostly because of paid links and review post. I strongly belief that those who are losing pagerank for disobeying Google are passing the chain reaction.