I think this is a perfect example of it being buried. It's *there*, but it's still hard to find. Under the Business section there's a link to Where To Spend Your Altcoins article, which is probably how I found it originally. It's buried under a lot of information, though, and the label 'business' could be misleading, since that's a term typically aimed toward people who want to sell things, rather than people who want to buy things.

'Shopping' exists as a category (http://devtome.com/doku.php?id=category:shopping&s[]=shopping), but it's not listed under any of the topics on the mainpage. It's not under commerce, devcoin, or devtome. Even searching simply for 'shopping,' it's the eighth search result. If there's a prominent page where it's linked, I haven't been able to find it, though that's not to say I didn't miss it.

The topic tree is also inconsistent. Some of the links lead to category pages, some directly to articles. This can also be confusing for people trying to categorize their articles who find that a 'category' doesn't exist.

More interlinking will help (I'm trying to add pertinent links to sections as I find them).