Thanks for your questions.

1. You can check Alexa.com for site traffic.

2-4. To find out when you should bid, who you should avoid bidding against, and what items would be easiest to acquire we would encourage the following:

- Monitor the site you want to bid on for at least a week before you jump in fully.
- Use the ended auctions feature on a site to get some of the data you would need.
- More advice on this can be found here: http://pennyauctionlist.com/penny-auctions-for-beginners-1/ and here: http://pennyauctionlist.com/penny-auction-mistakes/

Penny Auction List