Just ran across this while browsing around the web.
Use this "promo code" inside your BigStockPhoto.com account and get 5 free credits: HBSX10
It totally works, even with existing accounts as I just tried it and whaddayaknow....I got 5 free credits.
Just thought I'd share the "love" before the code expires.
If anyone has any other promo ( or "coupon" ) codes for BigStock, post 'em up. I know other Warriors will certainly appreciate it