One nice thing about Flickr is that you can usually select the size of the image being served by simply changing the suffix of the file name. Your OP used the '..._m.jpg' file name, I changed it to '..._b.jpg' for my reply. If the original image is extremely large, it makes it really convenient to pick a more appropriate size for the situation.
https://farm5.staticflickr.com/4856/45065053544_677d687707_s.jpg "Square" _s
https://farm5.staticflickr.com/4856/45065053544_677d687707_q.jpg "Large Square" _q
https://farm5.staticflickr.com/4856/45065053544_677d687707_t.jpg "Thumbnail" _t
https://farm5.staticflickr.com/4856/45065053544_677d687707_m.jpg "Small" _m
https://farm5.staticflickr.com/4856/45065053544_677d687707_n.jpg "Small 320" _n
https://farm5.staticflickr.com/4856/45065053544_677d687707.jpg "Medium" blank
https://farm5.staticflickr.com/4856/45065053544_677d687707_z.jpg "Medium 640" _z
https://farm5.staticflickr.com/4856/45065053544_677d687707_c.jpg "Medium 800" _c
https://farm5.staticflickr.com/4856/45065053544_677d687707_b.jpg "Large" _b
https://farm5.staticflickr.com/4856/45065053544_677d687707_o.jpg "Original"_o
I usually use imgur.com for forum posts - mostly because no account is required.
You sometimes can get Google Images to work by copying the image address when viewing an individual picture and adding ?.jpg at the end.
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Go Harris County! That is a great picture capturing a moment in history.