Kudos for your courage to make your great ambitions public from the start.
1. Does the site do any crawling on its own, or is the public index only fed from submissions?
2. It appears Umlaut/Unicode handling needs some work: When I search for "Käse" (German for 'cheese'), I get the response "0 results for 'Käse' in 'www' (0 ms)".
At this point I'm not sure if there's actually 0 results or if it was actually searching for the escaped string.