Let me ask you a question. Did you ever think that the internet would become so powerful and pervasive, that even craft supplies would turn into big business online? Neither did I. But it's true. You can actually find just about any type of craft supplies that you are looking for if you look hard enough through the different search engines (or your local retail store). However, there are a few big sites that you might want to peruse the next time you are considering buying craft supplies.
1) Amazon. Amazon has recently (during the last few years) expanded their reach into the far corners of the internet. By this, I, of course, am referring to the fact that a lot of online merchants sell through Amazon.com's website. If you are searching for 'leather craft supplies,' Amazon might not have what you are looking for in stock. However, Amazon might have a partner retailer who sells their leather craft supplies and lists their goods on Amazon. Consider Amazon like a giant retail search engine that lists items from all sorts of different companies besides themselves.
2) Ebay. Ebay is a great place to find close out merchadise. By this, I mean that companies go bankrupt and have fire sales. A lot of these sales have moved online and therefore you might be able to get a really good deal on some merchandise that is being auctioned off on the world's biggest auction site.
3) Retailers' own websites. Many of the well known craft sites like Michael's have their own websites. These sites often have great bargains on merchandise that's also found in their retail stores. However, even these retailers need to occasionally close out some big lots of merchandise. The web is a perfect place to do exactly that. With no real overhead costs (besides the website's operation), many of these big retailers will use the web to move a large amount of product really quick. Of course, the retailer needs a mail order, or store pickup, set up to do this, but most do. Check your local retailer's website, you might be surprise.
There is a lot more to craft supplies' shopping than first meets the eye. Learn all about how to shop for crafts, there is an entire world waiting for you online.