Lot's of suggestions...
Some of them might be fine with JPEG, but not work with your RAW (CR2) files. Normally those cannot be directly accessed in any way, except in image editing software or until converted to a more universal JPEG file using a program such as Canon DPP, Elements, Lightroom, etc. (In addition to the preview of the image itself, all its data
can be read from CR2 files too, in these programs.)
Note: Don't "save for the web" when making JPEGs from RAW... that strips off the EXIF data, to save a tiny amount of space. .
If using Windows, here's a useful shortcut for RAW shooters:
Install a Codec such as FastPictureViewer that will allow you to preview the RAW image directly in Windows Explorer (you do need to change the view in Windows Explorer to medium, large or extra large icon.) Right-clicking on any image will bring up a menu, select "properties" to open a dialog box, that includes much of the EXIF/shot data as well, under "details" tab.
The neat thing about FastPictureViewer ($10 the last time I looked), is that it works with RAW files from virtually all camera manufacturers, as well as DNG, TIFF, PSD and more image file types that normally can't display in Explorer. It can be a real time saver, being able to see image previews right in Explorer, rather than having to open any of the image cataloging and editing programs to work with them there.
http://www.fastpictureviewer.com/codecs/There are probably some other codecs that work as well. I've been using FastPictureViewer on a number of different Windows machines for years. It's what I'm familiar with and comfortable recommending.
FastPictureViewer works with both 32 bit and 64 bit Windows, all versions from late XP through 10.
I have no idea what works with Macs... simply haven't used one in quite a few years.