icurio orders content results based on a proprietary algorithm that emphasizes relevance and quality. Relevance is determined primarily by matching keywords, keyword phrases, and site placement taxonomies. Ratings are an important factor in ordering results, but not the only factor. In fact, in icurio and with most search engines, relevancy is more important than rating. For example, if you search for “Anne Boleyn” you certainly want to see resources specifically about her before you see resources about Henry VIII (which would contain something about her) even though the Henry VIII resource might be rated higher.
As an icurio user, you can also make some choices about how you would like your search results to be ordered. Learn more about your sorting options here.