Winno is a small United Kingdom based Penny Auction site. Winno offers the standard items for auction.

RockyBid is a large Penny Auction Site.  RockyBid has a large selection of items for auction and ships to the US, Canada, UK and Australia.

Redbread is a small penny auction site for United Kingdom residents.  Redbread bills iteslf as "The People's Favorite UK Auction Site."

So Much Cheaper is a new penny auction site open to United Kingdom residents. Similar to some UK based penny auction sites, So Much Cheaper lets you place your bids via mobile text.

Bid4Vouchers is a United Kingdom based penny auction site exclusively offering gift cards / vouchers for auction.  Bid4Vouchers accepts bids online as well as from your mobile.

MadBid is a popular United Kingdom based penny auction site that has gotten quite a bit of press lately. MadBid allows you to bid using your mobile phone, which is unique among penny auction sites.

BidRivals is a global Penny Auction site, with dedicated sites in over 20 countries. BidRivals has a wide assortment of auction items, offering many features, such as Buy It Now and Use Lost Bids.

Swoopo is one of the best known Penny Auction sites. Started in Germany in 2005, Swoopo has expanded worldwide to the United States as well as South Korea. Swoopo has a very large selection of items and features attracting a large number of users from all around the world. Enter promotion code fb0374 to get 3 free bids at registration.