Is it using a search engine I might know? well that's mostly lucence. Seem to half-remember you'd moved to a customized php engine? Tried some of that query syntax and agree it seems to be losing results perhaps they shouldn't. Was looking for a way to browse via combination of tags, possibly the most popular ones by tag and descending order over the last 24h, week, month etc.. Quite like how delicious lets you mix tags, but your url (ending with the tag).html would make this tricky, tags like "web 2.0" (space) would also make urls like
http://www.dzone.com/links/tag/java+swing tricky.
Lack of boolean logic and wildcards in queries (so it seems) and poor tagging of posts to start with (see use of groovy tag) make some of my pipe queries impossible. Rather impossible to replace multiple searches, unions and attempted de-duping of results.
Actually started thinking that my feed reader should do some of the heavy lifting too. DZone is kind of interesting for it's re-tagging vs the random rss/atom categories of blog posters out in the wild - also its votes and click counts. But I'm not sure they're working quite so well with the new blood. Seems the vote count can be heavily influenced by the choice of title and description over the content. Plus you seem to have some tit-for-tat trolls voting stuff down, because "I don't like java" or "Im not a web designer" actually the lack of a reason makes this tricky to track - although Id suspect making comments mandatory might stop people voting at all. Seems the web crowd outnumber the java one, and the j2ee developers outnumber the swing ones so my pipes filtering down to the subject often only get 5-20 votes (or less).
Couple of things that might help is a widget to suggest tags when someone makes a new post, again not unlike delicious which seems to work off previous tags applied to similar urls/domains. The description/content could also be queried for keywords. Or have a means to express a 'field of interest', web designer, web developer, java developer etc.. either per user or per post and the means to filter.
Even then I dont suppose it'll fully solve duplicates like
Positive JavaFX 1.0 review at eWEEK today,
Sun Muscles into RIA Space with JavaFX essentially the same content twice, but ones a blogger talking about the latter.
BTW tried searches on jroller which didnt work at all, neither did the tag links? Although googling latter and queries on java.blogs shows these two feed aggregators are pretty much past their prime..?