def top_businesses(location, radius, category = nil)
  # Find businesses, by location, within radius, sorted by distance
  top_businesses = businesses.sort_by_distance_from(location).select {|b| b.distance < radius}

  top_businesses.reject!{|b| b.reviews.empty?}.sort_by(&:stars).reverse

  # Err...you can limit by category :)
  @businesses = @businesses.map{|b| (b.caches(:category) && (b.caches(:category).parent || b.caches(:category)).taxon_id == taxon_id) ? b : nil}.compact unless taxon_id == 0

  top_businesses.first(100)
end