Wikidirections A wiki for directions (for those who prefer not to use GPS or mapping services). Essentially no content yet. Will there ever be?
Google's OpenSpot Find an open parking spot, if someone notifies this service AND it hasn't been taken by someone else before you get there. Ultimately doomed because it cannot be useful unless it is automatic and ubiquitous. (And it won't be ubiquitous unless it is useful).