Here are the most common spots within a website to place your Advertisement:

Spot Usual Location Header Above the fold Top right square or front Above the fold Pop Up Above the fold IMads Above the fold Hardlink (text or menu) Anywhere Skyscraper (left and/or right side) Anywhere   Plug: thumb or images Anywhere   Leaderboard Anywhere Footer (Full footer or footer square) Below the fold   Next to video Video page Underplayer Video page Inplayer ad (pre-roll or post-roll) Video page

Here are the mistakes you should avoid while placing ads on a website – regardless of placement:

• Ad excess / Multiple Ads of the same
• Subject and/or product excess
• Missing the target
• Not respecting a TOS

Read more here:

Webmaster e-Real Estate