Chiming in again... apologizing in advance.
Actually eBay's policy has always been for open communication between buyers and sellers. It's definitely NOT against policy to contact a seller by phone. On the side if the business (vehicles) I was on, we encouraged sellers to post their phone numbers in their listings so potential buyers could call them with questions. This is always a personal decision for each seller and different for every situation. Be aware that some sellers will try to sell their item to you directly via that phone call to save on the eBay/PayPal fees or other less savory reasons. Remember that if you're not the WINNING BIDDER, you have no Buyer Protection.
Here's what's posted on the eBay site and good info to know:
http://pages.ebay.com/help/buy/contact-member.html
Request a member's contact information:
If you're involved in a current or recent transaction, and can't reach the other member through email, you can request the other member's contact information. Here's how:
[*=1]Click the Advanced link at the top of the eBay home page.
[*=1]In the Members section on the left side of the page, click Find contact information.
[*=1]Enter the username of the member and the transaction's item number.
We'll send the contact information, including the member's name, city, and telephone number, to your registered email address. The member will also receive your contact information. You'll both need to respect our User Privacy Notice when using this information.
One thing to know is that you must have a listing in common. Means you've bid on their item (doesn't really work for a
Buy It Now does it?). Also, the seller receives YOUR contact info in this process, it's only fair. Even if you've bid on an item, you CAN retract your bid. Don't wait till the last minute to do all this! You have to give the seller time to respond.
Other than this, there's always the
Ask A Question link at the bottom of all listings. Response is not guaranteed.
Stu, is absolutely right about being careful and doing your research. I've had major purchases like him and come out with great results on all of them. Many of my latest purchases have been small items from sellers in Asia. Typically $10 to $20 and I like to see how fast the shipping is. Surprisingly fast but usually small items.