I signed up for Flickr and have uploaded quite a few photos. Flickr is easy to use; the user interface is intuitive while providing the features you would expect from an on-line photo service. I downloaded and used the Windows Upload tool to drag and drop the photos I wanted to queue up for uploading (without reducing any resolution). I rotated any photos that needed their orientation corrected at this point and then clicked the upload button.
Once uploaded, I edited the descriptions and tags in batch for the entire group. I used the organize feature to group my photos into related sets. I found Flickr’s usage of the EXIM tags (inside each photo) to be especially handy. I really like how it ordered pictures by the data taken (stored within an EXIM tag inside each photo) within the organizer. Also, all my EXIM tags are accessible in Flickr so you can see what kind of digital camera I have and the attributes of my camera when the picture was snapped. However, given my photo skills this will mostly supply what the automatic mode sensed was the best configuration for a particular shot.