I have a bit of hummingbird/algorithm problem with one of my site It's a mod download website where a wordpress>single post article and link to an attachment page which then had a download link. If you use wordpress then you know you can choose media file to either give direct link or use an attachment links. I have about 5 of this type website and only 1 of it is hit by hummingbird and the recent algorithm. What I really want to know is I read around and people said google crawling these attachment page and calls it a duplicate and thin post Is this true? If it is true then why did my other 4 site is doing fine? One of them didn't even budge it's position for 4 years. I am now not sure if I should place attachment on the post itself [ direct link to file ] or keep using attachment page. The site has been hit by hummingbird and recover from it back in January, and is the one making the most money for me. What even worst is my no 1 keyword is now replaced by a website that has no content, and is actually more spammy than mine What are your thoughts in this problem? I hope to hear some opinion..