"Google's Picasa software is a powerful tool for managing your
photo collection. It provides a simple interface for organizing
your pictures, as well as some easy-to-use, yet powerful image
manipulation tools. However, until recently the Windows version of
Picasa has had some features that put it above the Linux version;
some of these features, like Picasa Web Album integration, are at
the core of the program, without which Picasa isn't very useful.
With its newest release, the Linux version is being brought up to
par with its Windows counterpart.
"Picasa 2.7 is still in beta, so it isn't included in many
repositories just yet. However, Google provides easy-to-install
packages in RPM and DEB formats on their download site..."