Icon Collections
| Freebiesbug Icons | Colorful icons in PSD format (use a PSD to JPG conversion tool if needed) | Free |
| Free Vector Download | Many icon sets of varying quality. | Free |
| Webalys Icons | A variety of icon styles | Free and premium |
| Function | Set of 335 icons suitable for apps, websites, navigation | Inexpensive |
| Glyphish | 50 crisp icons for applications | Free, attribution to website required |
| IconArchive | This site has a great assortment of varying quality icons to download. It's cluttered, but usable. | Free |
| Icon Dock | An icon resource for all kinds of stock icons. | Free and very cheap. |
| SmartIcons | Free set of line and filled icons within an icon customization app | Free set or pay for app and customize lots more |
| IconFinder | Search engine that finds icons. Find out whether the icon is licensed or free to use by clicking on the Info tab. This also has a link to all icons in a set. | Both free and paid icons. |
| iconmnstr | Over 1500 simple black and white icons. | Free. |
| Shock Family Icons | A deep collection of professional icons. | Pay by the icon set or download a limited free sample |
| Iconspedia | Another good collection. When you find the icon you want, select it and click on the preferred pixel size. | Free |
| istockphoto | Excellent sets of royalty-free vector icons created by freelance designers. Use "icon" in your search term for best results. You are given the source file so you can modify the image. See their licensing agreements. | Pay by the icon set |
| Nixus Icon Pack | 60 crisp and clean vector icons in three sizes. | Free |
| Open Source Icons | General icons with a marketing bent. | Free |
| Ikons | 300 free light gray icons | Free and paid |
| Sketchy Icons | These icons are hand-drawn. | Free |
| SmashIcons | Flat and line icons | Free package and larger premium package |
| StockIcons | High quality and broad range of icon sets. | Pay by the set. Pricing is in the upper end. |
| The Noun Project | Black and white icons by different designers to build "a global visual language that everyone can understand." | Free but registration required. |
| Dingbat Fonts | Fonts that produce icons. Enlarge as needed. | Free |
| Webdesigner Depot | A set of 200 icons with a web design orientation. Scroll down and you'll see lists of additional icon sets from Web Designer Depot. | Free |