Here is the sourceforge link I have been using for contrib written for moodle 1.5. (I am sure you already have it, but it might help someone else). Sometimes I go there first, and then search the moodle forums for the blocks I think look interesting. Be careful what you download! We got mixed up between the quickmail and the block_quickmail. Had to backup and do that one again.
Thanks for the link! But how do I download something? I see the listings (e.g., block_course_menu) but don't see anything to download when I select one of them.
So if you wanted block_course_menu, just go to http://moodle.org/download.php/modules/block_course_menu.zip
Thanks Chardelle and Jon! I downloaded the Questionnaire module some time ago, but have only just got back to exploring the "amazing world of Moodle contrib."