Listed below is information regarding specifications for the Megastitial. Use these as a guideline when ready to start campaign.   Pop Window Specifications: The landing page creative can be either a .gif or .jpeg image or any common web page extension. The creative size should be 585wX261h pixels and the pop up can be maximized. The page size should be no more than 30k including images.   Pop Window Basics: Maximum size - Should not exceed 30k. "Yahoo.com's homepage is 30k and loads in less than 6 seconds on a 28.8 modem" File format - HTML or JPEG/GIF/GIF89a (256 colors) URL - One valid URL up to 100 characters.   Other Information: Stats for the Megastitial are provided by Acustat.com. Once a campaign is created, it is sent to our Production staff who then inserts the campaign information into our database. Given the task of inserting the campaign information, a campaign can take up to 72 hours to start accumulating traffic.