Some websites pay for performance based on page views for virtually anything you want to write about if you have the proven experience and background to cover your beat. Many companies are looking for part-time bloggers to help them create high-value blog posts for their websites—thus, the opportunity for those who have a knack for writing compelling content. Most clients pay per post or on a retainer contract with a set number of posts delivered per month.
You could also opt to use existing websites for making money. These include both active income and passive income methods. For example, you could sell some used items or invest in creating some digital designs that then can be sold on merchandise. Again, devote a sizable portion of your time to passive income so that you can slowly build up earnings that will arrive on autopilot without any extra added effort.
Utilize websites like Payscale.com, Salary.com, and free salary guides from Robert Half and Randstad to find out what a competitive salary might be for someone with your expertise and education in your area. Document everything that you have accomplished at work in the past year and present it to your employer. When you are making an honest case for yourself instead of demanding a raise, your employer will at least consider your request.