eBay
there are no other websites i think
There are several different websites where you could list your boat for sale. Some of these websites include amazon, eBay and other websites as well too.
There are several different websites that you can look at for cheap textbooks. Some of them include as you said amazon as well as eBay and other websites.
Some websites would be Clubpenguin.com, Fantage.com and moviestarplanet.com. Hope you like them!
Bringvictory.com
Yes, eBay or any of the other auction websites will allow you to sell your things for money.
Marx trains can be found most easily on websites like eBay. Although you could probably find them on other online shopping websites. Some may even be available in specialty stores that sell related items.
There are many other auction websites that are similar to eBay. Some of those websites include: Amazon, Yahoo, Overstock, and QuiBids. QuiBids auction website is fairly new compared to the others.
Ribbet and picmonkey
I like both! Ebay is good for some things and Amazone is good for other things!
Refurbished servers are sold on many websites for low prices. Some such websites include eBay, Amazon, ServerMonkey, and websites for specific brands, like Dell.