Since I just had an online purchasing experience with buying a new cue I'll throw my 2 cents in here. Out of all the sites I looked at, including Ozone, Billiards Warehouse, Pool Dawg, Muellers, and others, I think Seybert's has the best laid out site, period.
Some sites were really horrible with navigation. Take Monster Break Billiards for instance. I took me 6 clicks to get to the McDermott Professional series of cues, only to get there and see that they only had 3 cues listed. With Seybert's it was a single click, you just hover over the menus on the side to drill down.
What I didn't like about Ozone and Mueller was that they only showed the butt cap in the listings. You have to drill down into each individual page to see the whole cue. If you are just looking at what kind of styles are out there, then that is pretty annoying.
Pool Dawg was a little better but they don't break the cues up by line. Since I was looking for McDermott cues, I had to go through three pages to see all they had to offer in the Profesional line as they were all jumbled up with Tournament and Competitor series as well as just plain shafts.
I ended up buying from Seybert's for the following reasons. These are in no particular order of importance, but they were all important to me when making my decision.
1. They have a very professional site that indicates they are serious about doing business on the web. Navigation was a breeze.
2. They have a huge selection of products. This is important to me because I would prefer to not open up accounts at several different sites. If I want to buy some books or chalk or anything, I already have an account at Seyberts now, and they are probably going to have what I'm looking for. That's one trick to get repeat business on the web.
3. They had the best price on the cue I was looking for. I some cases it was only a few dollars cheaper, but since they have that Seybert's bucks program I was able to get two Phil Capelle books at no additional charge.
4. They alllow you to customize a few things about your cue very easily before adding it to your cart. You can pick your tip and weight, add a case or joint protectors all from the product page and then add it all to your cart with a single click. They make that part really easy. I had a sniper tip installed for just the price of the tip, no labor charge. That was pretty nice.
Well I hope some of this information helps. Tell your friend I said good luck
on his new business venture.