Khigo is a Safari App Extension that makes easy to search text with different search engines using drag & drop.
-- Drag & drop text to search using different search engines and open in new tab.
-- Drag & drop links to open in new tab.
-- Supports four directions left-up, right-up, right-down and left-down.
-- Add or remove search engines and configure search engines for each direction.
-- Open tabs at foreground or background according to direction.
-- Press 'Escape' to cancel drag.