For those people who are unaware of the new secret shop locations for v6.42 map that has been recently released lately, here is a screenshot where you can find them.
Location 1 : Upper Left
Location 2 : Bottom right
Source : http://aeyah.wordpress.com/2007/03/11/new-secret-shops/
[tags]DotA, Secret Shop, v6.42 Map, Gaming, Dota Allstars[/tags]