A technique for enhancing the results of an existing online search engine involves re-ordering the results of a search according to the feedback provided by a user community to previous similar searches. In an embodiment, the technique is fully backward-compatible with existing online search engines. In an embodiment, feedback is collected by an intermediary that sits in-between a client and a server. The intermediary intercepts requests and, for some, modifies the results. In this way, the technique can enhance the results of searches addressed to online search engines such as google.com, while being non-intrusive to an online search engine and a client browser.