We shoot at maximum resolution (5mp - 8mp depending on which camera we're using) for all shoots. This way, we have options for the future if we, for example, want to produce calendars or books or ads in magazines.

The only downside is it adds one additional step in preparing the images for the web, but with an automated resizer, we just point it to the image directory and let it run through all the images and size them appropriately, takes no more than a few minutes per photoset.