Could we keep Resources for Learning Spanish in the Sidebar whenever there's room for it, please? I think this question will help attract serious students of Spanish to the site, and will help them use the site wisely.
I wonder if this question's answers would help? What is "Frequently Asked"? It talks about frequent posts and faq.
I asked at Meta. Does this answer help?
An additional idea. Take a look at this "Featured on Meta" in Sidebar.
Look at the Sidebar. Nifty, no?