Since my Flickr account went Pro, I was able to upload as many pictures and photos as I took with my camera and shared them with all of my friends. Here are two Flickr clients if you use Linux system, which allows you upload your photos conveniently.
1. jUploadr

jUploadr is a cross platform, 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. It is Flickr officially recommend photo uploading client for Linux.