Jay Honeck wrote:
For at least the last five auctions, I have been out-bid at the very
last second...literally. Today I tried putting in my bid with just 8
seconds to go in the auction, was "high bidder" for 6 seconds....and
was out-bid with literally 1 second left!

As someone else said, auctionsniper.com is a favorite one.

As one of many collectors of old flight computers on eBay, I cannot bid
ahead of time since that alerts others to my interest, especially if
it's misspelled or some other secret find.

So I used to wait up late at night or have to run home, two windows
open to bid at the last second. My wife hated it. Now I just put in
my highest bid, and let the sniper site bid for me. It only failed me
once out of hundreds of auctions, when an auction ended on the hour and
I didn't reset the snipe time to a little bit longer to compensate for
eBay's busy computers.

Kev