As tempting as it is to use Google Images to search for useful images to add to your powerpoint presentations or online presence, many of those images are copyright protected and may cost money to use legally. As we all want to do the right thing when it comes to copyright, here are a few links to some sources for images which can legally be used.
Please note that it is important to check creative commons license to determine the level of citation needed to fulfil licensing.
Wikimedia commons is a wiki for creative commons licensed images
Microsoft images are freely useable if you have a licensed copy of Microsoft Office. This search page shows the images/clipart available with the search “Medicine”.
Sadly, Microsoft is no longer making their clipart available online.
A one stop shop for searching creative commons licensed media
If you want to be sure that you are using your images correctly, take a look at this infographic.
Original Image Source: http://thevisualcommunicationguy.com/2014/07/14/can-i-use-that-picture/
Although it is Americentric, it does still give a good idea about whether you can go ahead and use that perfect image you found on the web.
Happy image hunting!