jUploadr is a cross-platform and cross-site photo uploader. Currently, it runs on Windows, Linux, and OS X, and supports both Flickr and Zooomr. It allows you to set all properties of a photo before you upload it. It also supports batch editing, so you can make short work of uploading a bunch of files.

Pros: jUploadr is the perfect solution for uploading multiple photos to your Flickr or Zooomr account. It prepares your photos for immediate public viewing by allowing you to enter their titles, descriptions, and tags before uploading. jUploadr is a cross-platform application for Mac, Windows, and Linux.

Cons: None significant.