WestHamFan - do you use specific names such as: white netbooks, or more general such as netbooks, or even more generic such as portable computers and then create many pages on different keywords?
In all honesty the quality, type or extension of a domain name matters very little to the likely success of an ePN monetized site IMO. I know many a domainer that will claim you can get much better traffic using expensive generics or names with high exact searches etc. But, funny old thing, in the real world of developed websites and natural search these great name attributes don't seem to matter quite so much.
It is the content of your site that will make it or break it. I would happily use a dreadful name like bingobongo/me/uk (made up) to sell bingo dobbers and tickets etc.
As I said before, if you target a tight but less obvious niche (e.g. bingo supplies rather than DVD Movies) and write some good unique content that is backed up by links to specific relevant eBay listings you will do just as well with a crappy me/uk domain as you will with a good co/uk costing hundreds. The key is to get good quality and unique content indexed by Google. If anyone mentions the type in traffic myth at you I would just ignore them. Unless you are willing to spend £xx,xxx on a top premium domain (unlikely as the return from ePN wont ever justify it) then it's all about getting good, UNIQUE content indexed.
I know there will be domainers predictably disagreeing by now but, in my experience, it's fact. When it comes to natural search traffic then Google will favour good content on a poor domain name over poor quality content on a good co/uk domain. Fortunately most of the good domains are parking pages!
Create an eBay link farm and Google will squash you in no time. I've seen (and tried) no end of RSS driven sites which simply serve up listings by keyword with little or no quality content. Until Google bury you these can generate some clicks but it's not the way to go if you want to build a long term income. The only way such a site can survive long term is to use Adsense or other paid for traffic. It's not a model I've tried.
My most successful site is focused on a collectable subject. I have a home page with rotating articles (different articles on each day of the week/month). I also draw some eBay listings by RSS to create a fresh set of keyword rich examples WITHOUT adding the affiliate links. Then there is an articles section which now has a couple of hundred indexed pages (using a simple free news script) and also a directory (again a free script) which has created a load more indexed pages. Every page has a search box on it which, together with all links about specific items anywhere on the site, leads to an RSS driven page showing eBay listings according to keywords. This page is
excluded from Google by the site's robots.txt file.
The point of this exclusion is that I am not asking Google to index my search pages full of affiliate links but I do want Google to index all my other subject specific content. It's therefore my content that drives traffic to the affiliate pages and not Google. Google seem to like this way of working as they consistantly bless the site with decent traffic levels and a fair proportion of visitors end up viewing eBay listings.
I've been working as an eBay affiliate for many years and, accepting things do change over time, I feel as if I've learned a lot about what works and what doesn't. From the domaining point of view I've learned that top quality premium generic names are great assets to own if you can get them at the right price to resell or hopefully appreciate. But for developing websites I rarely use a domain costing more than reg fee. I certainly wouldn't spend over a £100 as my aim as an affiliate is to earn as much as possible while spending as little as possible.
Aside from new words and rare drops it is difficult to get genuinely premium domain names now. But lesser names, even hopeless names that are producing a regular income are just as appealing to many investors as premium domain names.
So, for me, making money from ePN isn't really realted to domaining. The two industries use and value domains in very different ways.
