I run into this, too. The search function also has limits. The other day I spent at least half an hour looking for this article (http://devtome.com/doku.php?id=where_to_spend_your_cryptocurrencies) with search terms like 'where to spend devcoin,' 'spend devcoin', 'buy with devcoin,' etc. NOTHING. I couldn't remember how I found it, couldn't find a link to it... I finally had to remember one of the names of the actual businesses to get a hit in the top twenty search results.

I think something that would help with this is interlinking articles more when they are relevant. If you see another author's article that you like and is relevant to yours, put a link in the body of your text or 'see more' section ala Wikipedia.

Another thing that could be done is to create new categories for 'opinion pieces,' 'informative articles,' et cetera.