Today’s featured promo on MacUpdate features HistoryHound 1.9.2 for US$12.95 (35% off, retail $19.95). HistoryHound lets you quickly search for keywords in the entire content of all Web pages and RSS feeds you’ve visited recently, plus all those that you’ve bookmarked. It’s a “personal Web search.” Instead of hunting through endless lists of obscure URLs and page titles, just type in a few words that appear anywhere on the page. HistoryHound will give you a list of matches, ranked by relevance.