LoveSales - Find and save products you love, get alerted when they go on sale.
Wantt - Create & share wish lists for free
TrackIf - Alerts you if the price of your favorite products drop
Whilo - Gifting Made Easy - Never give or get a crap gift again.
Giftwhale - Giftwhale allows you to create personalised wish lists online.
WishTender - The safest and most flexible universal wishlist for content creators.