Amy, after reading your first post here, I'm certain you have some very compelling reasons, no doubts what-so-ever.
As you might recall (and as other forum users may now know), I've seen the life cycle of many sites over my past 11 years on the Net - some of this time, while as an industry professional within Net & e-commerce realm. This is precisely why I'm being so opinionated. I truly KNOW how frustrating and disappointing all the hard work and effort can sometimes be. So keep your chin up or rest it on someone else's shoulder when you need to regain your strength, kiddo!
I've seen it before, and now I'm seeing it here....you've hit the proverbial "wall". These days, not everyone in the Net community is as caring and sharing as it once was "out there". Sadly, these are different days/times than in the past. Which is yet another very strong point of this website.....you're still promoting the old cause for the betterment of others and profit isn't your singular motivation.
Even your CD offering shows how caring you are. You ask for so little in exchange for a wealth of convenient information. I think the nicest part is that what you offer for sale is not the main focus of your site and being shoved down someone's throat with a strong marketing attempt at every turn, like I've seen elsewhere. That's the kind of site that drives people to look for a better deal and elsewhere for their information. Your site simply invites people in with a warm and friendly approach to information sharing. If someone would like even more depth, you offer it politely.
What users outside of the web industry might not already know is that it can take real jingle (as in $) to maintain a functional and informative website and the domain name.
Maintenance is an ongoing financial commitment with ever growing responsibilities as the site develops into something special. It doesn't matter what the skill level is of the person who's running the site. Someone with little knowledge can throw huge bucks into creating and maintaining, while someone with lots of knowledge might opt for even better features that can rack up a substantial overhead.
Throw in the copyrights of other's sites, their own logistics and profit motivations, and you can have a real problem on your hands if you're a caring person, like Amy. I strongly doubt Amy has an easy time balancing what's she's spending to maintain this site with CD profits (if any), so it's pretty apparent to me that she's doing this simply for the love of sharing the craft. To which I say: "Thank you, Amy."
So if there's a conflict with someone else's copyrights or photo's etc., fine. Do what's right, be a good netizen and, if you have to, drop their link or simply link to their site if you know it's the proper thing to do in the particular situation.
In the meantime, taking a poll is an excellent idea. I'm not 100% sure you'll get an exact idea of how much traffic the patterns have generated, but it's a start. The important thing to really know here is just how much your hard work is appreciated by others, if they'll allow me to speak for them.
You're more than welcome for my thoughts and suggestions. I'm just glad you had a chance to think about some things you've likely been way too busy to think about. Anytime I can help out, just let me know.
No matter what, I'm stickin' around because I like friendly, caring/sharing places!