Check my post right above yours.........I just shot all those pics with my Nikon Coolpix 4500. This camera is about 7 years old now I think.........had it since new and to be honest............it takes better pictures than my pro series Canons for basic internet posting. It is only 4 megapixels and is all you really need unless you are going to get into print/publishing or making very large enlargements. I use some professional 13 & 17+ megapixel cameras for shooting pics for books such as the closing photo of the Latte Balls I took that is in VPI's Ball Python book. . . but they are overkill for posting pics on the net.......the detail just does not show up.
And remember.......it is not the camera, but the photographer that makes a great picture great! If you take the time to learn about the camera and photography you can shoot AMAZING images even with a 1 megapixel camera phone such as this pic I took of a Cuban tree frog in my driveway last month
Jared

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