> Feedback welcome! Right-side navigation bars are nonstandard. It should be moved to the left side. Don't accept the search engine excuse; that's easily fixable. Also, by fixing the search engine issue you punish Lynx users; the navigation menu is now near (but not at) the end of the text.
Sidebars should have some enclosing detail, such as a border or a shading, so set them off from the rest of the page. Don't rely on whitespace to do this job. "Platforms" and "Testing" have bullets; no other item in that list does.