The Google program Picasa was a favorite of Zee Hamm when she had a PC. She really missed it when both she and Jim switched to Macs. It's finally been released for the Mac. Here is one link to an article: http://arstechnica.com/journals/apple.ars/2009/01/05/macworld-ars-google-officially-releases-picasa-for-mac
and the other article is http://www.download.com/8301-2007_4-10130501-12.htm?part=rss&subj=news&tag=2547-1_3-0-20