Any advertising is clearly indicated as such, either by being separated from the content or indicated with the one the words Advertisement, Ads, ebay auctions (or similar wording).

However to make  some server hosting money, acoolstuff maintains affiliate relationships with trusted online stores. These links allow us to earn a small commission on the sale of products.
We have an affiliate relationship stores including: Ebay, Amazon, ThinkGeek, NewEgg, Threadless, Zappos, Overstock, Ebates,Snorg Tees etc.