Royalty-free describes material (typically graphics such as stock photography and icons) that may be used for profit, without paying royalties.

Royalty-free media is usually acquired for a 'one time only' fee, although public domain imagery and many works created under a copyright license are also usable without paying royalties or an initial fee.

• Alamy - 12.57 million stock photo site images
• AniStock - royalty free stock animation
• Comstock - pay once and download 50 images a day
• DVarchive.com - collection of downloadable DV royalty free stock footage clips
• Fotosearch - royalty free images, major stock images & footage resource
• Freerange Stock - high-quality, high- resolution free stock photos and free textures
• PictureQuest - royalty free and rights protected images online
• Photosphere.com - an independent supplier of stock images
• StockVault - gallery of over 10.000+ royalty free, high resolution stock photos
• Stock.XCHNG - quality images - recommended
• TastyStock - digital stock including photography, stock illustrations, icons, web templates
• UKstockimages - ever-growing collection of exclusive UK royalty free stock imagery

Music and sound loops to use in Flash and other Digital Media.
Royalty-free music commonly refers to stock or 'library music' licensed for a single fee, without the need to pay any subsequent royalties.

• Sound Of The Web - music and flash loops & sound effects
• Webtones Music - on-line library of royalty free music
• Loopsound.com - music loops, sound effects & classical music
• Site Tunes Pro - high-quality, small-file size music loops
• Audio Network Production Music Library - 12,000 music recordings & 50,000 sound effects
• Soundrangers - sound effects & royalty free music
• Shockwave-Sound.Com - online royalty-free music library
• Dittybase - independent artists, indie labels & production music libraries online