1. Icons
   1. Iconfont
   2. Flaticon
   3. Noun Project
   4. IconStore
   5. Material Icons
   6. Font Awesome
   7. iconmonstr
   8. Icons8
   9. Autodraw
2. Pictures
   1. PIXELS
   2. pixabay
   3. Unsplash
   4. QUANJING
   5. Simple Desktops
   6. StockSnap.io
   7. LibreStock
   8. Visual Hunt
   9. ISO Republic
   10. PINTAB
3. Color Matching
   1. Color Hunt
   2. zhongguose
   3. peise
   4. colorfavs
   5. Das Plankton
4. Design
   1. dribbble
   2. pinterest
   3. FWA
   4. reeoo
   5. chuangkit
   6. seeseed
5. Videos
   1. POND5
   2. savefrom
   3. Apowersoft
   4. clipchamp
   5. handbrake