I agree with eBay fees - sold PS3 £300, had to pay them £30!!! plus my listing fee!!! worked out - it would of been wiser to sell it to a friend.
If your not allowed to post the "link" in your listings - simply send your customers a note:
"congratulations" - thank you for purchasing our product, you can find more items like these at www.****" <<< Okay - eBay doesn't allow the right of selling outside of eBay - but your not selling, your giving your customer free information...
They don't allow you to advertise links within a listing as it may be visable to many people watching your "listing" - if you use the method above - your only giving the "buyer" the rights to see this information, just be sure to include in your listing "also i will include FREE access to my website" - that way you cover your ground, otherwise you could be accused of "spam mails".
SG