If you work with maps on a regular basis, make some time to stop by at this site, providing a comprehensive catalogue of hi-res digital maps of world, globe, continent, United States, and major USA and world city maps, which you can purchase from the site, and are delivered in AI format for you to edit for any particular commercial or publishing need you might be up to because they are royalty-free. If you are unsure about whether these maps might be useful for you or not, try the sample area where you can get maps in Adobe Illustrator format, or alternatively in PDF. Different customers have different needs, and this company seems to have it all covered, so if you can’t find the kind of map you are looking for, because you want more or less detail that the featured choices, consider getting a quote for your customized map. MapResources.com also sells CDs of maps, which include collections of regional, continental, country’s and other maps as well.