| Ad Unit | Dimensions | File Size | File Types | Delivery | Tracking | Turn Around Time |
|---|---|---|---|---|---|---|
| Leaderboard | 728 x 90 | 40k max | GIF, JPG, SWF* | Site hosted or 3rd party served | 3rd party clicks & impressions are allowed** | 3 business days |
| Medium Rectangle | 300 x 250 | 40k max | GIF, JPG, SWF* | Site hosted or 3rd party served | 3rd party clicks & impressions are allowed** | 3 business days |
| Skyscraper | 160 x 600 | 40k max | GIF, JPG, SWF* | Site hosted or 3rd party served | 3rd party clicks & impressions are allowed** | 3 business days |
| Half-Page | 300 x 600 | 40k max | GIF, JPG, SWF* | Site hosted or 3rd party served | 3rd party clicks & impressions are allowed** | 3 business days |
| Persistent Bar Ad | 100 x 60 | 20k max | PNG only | Site hosted | 3rd party clicks & impressions are allowed** | 3 business days |
*If a SWF is supplied, a back-up GIF or JPG is required.
**If unit is site hosted, 3rd party clicks & impressions are allowed. If no 3rd party URLs are provided, click-thru URL must be sent with assets.