Money made by placing ads on websites, visible parts of the software, or in-app - or present sponsors to your audience. A recurring income with a bad reputation - often only works for large communities or high traffic websites.
Variants & Options:
|Effort to set-up
|Integration of code for ads and bank info is sufficient
|Effort to maintain
|Maybe minor version updates
|Cost to set-up
|Cost to maintain
|Individual sponsors who want to promote themselves might pay more for specific communities
|CPM is 1-10 USD - large audiences are needed
|Ad revenue is not very volatile
|Full income Threshold
|Assuming visitors to website per month; based on 5k USD salary (pre-Tax)
|I or C
|Maybe little extra work to manage ads
|Companies using ads will only see ad network
|Necessity to pay
|Users pay with visit / looking at ads
|Scales with the number of users
|Effort for marketing
|No marketing to get ads - maybe to enlarge community or site usage.
|At least no competition of ads for the project’s homepage, etc.
|Esp. for OSS with visible content Apps, Programs, or Websites (e.g., docu)