The expert in men's apparel Jos. A Banks provides everything from formal wear to golf apparel. You will of course also find lots of mens suits, business wear, trousers and other formal business clothing.
The Jos. A Banks site is well organized into categories of clothing for men. Clothing is categorized by purpose and you will find categories for everything from formal wear to business casual. You will even find categories for men's clothing accessories and shoes. You will also find a seperate selection for clearance items on the site.
Personally, I like the way that the Jos A Banks site is laid out, nice pictures of all of the items and plenty of neat stuff. The "build your own shirt" option is pretty cool. One thing that I didn't like about the site is that the clothing - while very high quality - is pricey - $75 for a tie is a bit much for me.