**Many of these sites are Open Source (free) and a few may charge a fee.
- Public Domain Pictures
- Free Images from Springer
create a screencast instantly!
PowerPoint Diagrams for Scientific Presentations Ready to Use and Easy to Edit
Allows researchers to publish all of their research outputs in seconds in an easily citable, sharable and discoverable manner.
A free-form literate documentation tool for writing any kind of technical document incorporating code. Dexy helps you write correct documents, and to easily maintain them over time as your code changes.
They call themselves the super sonic, thrifty, all-in-one picture finder, re-sizer and attribution builder for bloggers. Presenters can also use this to properly attribute pictures used in a presentation.
- Many Eyes: Create a visualization in three easy steps
Getty Images is proud to now wholly-own the world's best free stock site.
A distinguished leader in stock photography and a major supplier of high quality digital images at unbelievable prices.