As the title says what is +30 Penalty and one of my site is facing such penalities,now all my keywords for that site which ranked first in google is in 5th page(i think it is +50 Penalty)...Have any of you guys faced such penalities if so how you got over it...I am not sure of the reason for it still....I believe it is mainly due to over optimization of my site and due to the excessive usage of same keywords for link builiding!!