Survey Monkey is a survey building resource that is super simple to use. You can sign up for a free version (like I did). If you do it tactfully and by not being spammy you can gather some extremely valuable information from your list or your targeted traffic, etc.
I can't think of many better ways to gather information about your targeted group or list. You can use surveys to find out what their wants, desires, frustrations, and needs are. Then......
you guessed it... Give them a solutions in the form of an affiliate product or better yet your own product, whether it be a video, ebook, report, link, etc.
I created a 6 question survey that will give you a chance to see what a free generated monkey survey can look like. Like I said it was super easy and you get a lot of functionality with the free version.
The link is in my signature, go click on it now and I'll publish the results once I get 25 takers.
Have fun

and thanks for answering the questions. I think you'll all look forward to the results
BTW.. you can only take it once, let me know if you have any problems with it.
JB