Click on Filter again to remove the filter search. You must have some text typed in the body of your blogⁱ, article, or landing pageⁱ in order for this to work. Please note that the images change depending on the text you have typed. You can press the "Update" button to the right of where it says "Zemanta" to update right away. Otherwise, it will only update after a certain number of words are written. Please also note that the images may be different every time you create new content, as the default images are based on the current popular images across all the image networks.