BayMail 

BayMail allows you to send email to other eBay users without their actual email addresses. Send messages to up to 5 users at once without leaving the auction page you're viewing. BayMail works like an email client but sends email through eBay.
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Auction Informant 

Auction Informant monitors the items you (or any seller) are selling on eBay. When a new items is posted, or an item receives a bid or a bid retraction, Auction Informant will send a message to your email address, wireless phone, or pager.
ebay auction online auction selling tracker tracking bids alert watcher

FeeFinder 

FeeFinder takes the mystery out of eBay's complicated fees. It can calculate your fees for virtually any type of eBay auction, as well as PayPal and eBay Payments costs. It works with eBay UK, eBay Canada, eBay Germany and the main eBay site.
ebay auction online auction fees selling paypal billpoint shipping postage calculator costs.

AuctionIntelligence 

AuctionIntelligence helps you analyze eBay auctions in order to determine price trends and the best time to buy or sell items. Supports eBay.com, eBay.co.uk, eBay.au, eBay.de, eBayMotors.com.
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