One of the services we have used for about a month and a half is located in the directory. http://www.baytogo.com/
We have a pager, but it would also work with Cell phone SMS services.
This service pages us whenever we get a bid on an item, or the item ends with or without a bid.
Although we choose to have it page us whenever anything happens, when, and upon what occurrences it will page is customizable.
When one of our products reaches a target price, this service allows us to quickly realize, and place another item on eBay to meet the demand of the current market.
If we did not have a pager, it could email us whenever we get bids.
It runs on the service provider's computer, so it does not rely on an always on connection from our computers.
Sometimes when we are out and realize we have just sold an expensive BIN item, we know we have more money available to purchase other products.
They also do not require knowledge of our eBay password.
We have gotten our moneys worth with this service so far. The cost is around $4.00 per month no matter how many auctions we run.
