PsychoAuction is a very small penny auction site. PsychoAuction auctions last 5 minutes.

Pennylord is a new United States only penny auction site.  Pennylord has very few features at this time, maybe more in the future.

Bidzilla is a new penny auction site.  Bidzilla has a very slick bidding interface and offers a reward program and a leaderboard, which is unique among the dozens of plain vanilla penny auction sites.

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

DFWbid is a small penny auction site.  Their unique feature is auctioning off gift cards.

For10Cents is a large penny auction. For10Cents offers the usual features, including the ability to get reward bids.

BidBlink is a medium sized Reverse Penny Auction.

Penny Jersey is new and small Penny Auction site.  Penny Jersey's unique feature is that they auction sports related merchandise.

BidFire is a medium sized penny auction site delivering to the US only.

BigDeal is a US only, medium sized penny auction site.  BigDeal has one unique feature called Loyalty Rewards - for each $1 spent you get Loyalty Bucks that you can use to buy merchandise at some discount off retail.

Penny Purses is a small Penny Auction.  Penny Purses specializes in auctioning high end purses.

Pardoo is a small Penny Auction site. In addition to the usual Penny Auctions, Pardoo offers Fixed Price Auctions (pay only the auction price regardless of the level the bidding reaches) and 100% off auctions (winning bidder does not have to pay the final price, only shipping).

Beezid is a very large US focused Penny / View Price Auction site.  Beezid is also feature rich, including beginner auctions, why they refer to as "Cherry Auctions." Cute.

BidStick is yet another small, plain vanilla penny auction site.  One unique feature is all shipping is $5. Why not let us spend more and not have to wait 8 weeks for it to arrive.  That's right, that would mean they actually have the item in stock that you just bid and paid for...

QuiBids is a very large US Penny Auction Site.  QuiBids has 1, 2, 5 10 and 20 cent auctions.

BidTrotter is a small Penny Auction Site.  BidTrotter has one unique feature: if you're the 2nd place "loser" in an auction, you can get 25% of your bids back, provided you bid 100 times on that auction.

Wavee is a relatively new penny auction site that has grown in popularity in just a couple of months (I'm sure you've seen their Facebook ads).  Wavee offers bonus credits for heavy bidders - to keep bidding.

CrazyBidNow is a brand new penny auction site. CrazyBidNow has a format similar to the Home Shopping Network, with hosts pimping each product to be auctioned off.

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.

Nickelbids is a small Penny Auction Site. Nickelbids has a public support/ticketing system that provides a lot more transparency than most penny auction sites.

Bidaroo is a small Highest Unique Bid Auction headquartered in Indiana, USA.  Bidaroo donates 25% of proceeds to various charities.

BidMyDreams is a new and typical plain vanilla Penny Auction site.  At the time of our review, we didn't see any live auctions, so they may just have been taking a Friday afternoon siesta, or they've gone the way of the dodo bird, like so many other penny auction sites.

BidRodeo is a medium sized Penny Auction site.  BidRodeo is your typical penny auction site, offering a wide range of products, such as electronics and gift cards, they even auction off gold bars.

Dubli is a medium sized penny auction site that is also part of an MLM (multilevel marketing) company. Dubli offers Lowest Unique Bid and View Price Auctions.

Auctions4aCause is a United States based Highest Unique Bid auction.  According to Auctions4aCause, charities of your choice receive at least 25% of the net proceeds from auctions.

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.

Bidz is a very large discount auction, selling mostly jewelry and watches at significant discounts.  Bidz is not a penny auction, however, it is very popular with consumers looking for big discounts on large ticket items, similar to penny auctions.

Winnit is a Lowest Unique Bid penny auction based in the United States.  Winnit is currently best known for hiring Nick Lachey to act as their spokesperson.

Bidso is a small United States based View Price or Reveal Price auction.  Bidso allows you to earn bids by filling out various offers from their partners, similar to the offer wall in a lot of Facebook games like Mafia Wars.

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.

Flutteroo is a small auction site for United Kingdom residents only.  Flutteroo features 3 types of auctions, Penny Auctions, Lowest Unique Bid auctions and View Price Auctions.

Cents Encheres is a small penny auction site for France and Belgium residents only.

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.

BuyLow Auctions is a USA based penny auction site, where if the winning bid is over $20, they cover the difference to ensure that no item is sold for over $20.  BuyLow Auctions offers a 3 day trial of 10 bids for $4.95 to get started, and monthly discounted bid purchases thereafter.

Snaglo is a medium sized penny auction site based in the United States. Snaglo offers 10 free bids to new users when they make their first bid pack purchase.

Famdabidosy Auctions is a small United States based Penny Auction site. Famdabidosy Auctions offers 10% cash back for friend referrals and hosts Set Price, Totally Free and Night Auctions.

Haggle is a large, United States based Penny Auction site open to United States bidders only. Haggle auctions vary in two ways: by the price increments and the time added to the clock.

BidHere is an Australia based Penny Auction site. BidHere offers a wide variety of auction features, such as Cash Back, Speed and $0 auctions.

Winners24 is a small, United States based Penny Auction site. Winners24 offers Free Shipping on all items worldwide and activates new auctions every 30 minutes.

BidCactus is a large, United States based Penny Auction site. BidCactus auctions are open from 9 am to 5 pm Eastern Time, Monday through Friday. BidCactus offers specials such as Wacky Wednesdays and Happy hour Fridays.

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.

GoBid is a popular Penny Auction site open to Unites States bidders only. Their auctions are open daily from 6 am to 10 pm Pacific Time. GoBid auctions offer some of the more exciting Penny Auction features, such as Trade Items for Bids, as well as regular promotions to get Free Bids.