Downloadermac is a Cocoa application for downloading items from the Internet. It frees up your browser for other tasks by reducing the load on your Web browser's process by creating a thread just for downloading items.(e.g. firefox-bin, safari). It is tested on both Panther (10.3.9) and Leopard (10.5).
YourTube is a YouTube video downloader for mobile phones that support J2ME. Its main features are the ability to search YouTube videos, support for multiple video formats (MP4, FLV, 3GP), support for background downloading, and a download queue. The minimum requirements are MIDP-2.0, CLDC-1.0, and JSR 75 (File Connection API).
Awake File is a framework that allows Android and Java Desktop developers to very easily implement file uploads and downloads through HTTP. Security has been taken into account from the design stage: server side configuration allows you to specify strong security rules in order to protect the files. It allows listing, creation, and deletion of remote directories, calling of remote Java methods, and displays nice progress indicators to your users.
JunkBox is a lightweight Web application that can track your files and record every single click. You can get the total number of hits and statistics on who downloaded your files, and how and when. It is completely transparent, so every link looks like an ordinary link to an ordinary file.
MuDownManager is a program for managing downloads from Megaupload and Rapidshare for premium members. It is lightweight and cross-platform. Downloads can be started in a batch by specifying a list of URLs. Links can be copied directly from your preferred Web browser and pasted into MuDownManager. MuDownManager lets you skip LinkBucks. It has a very simple and intuitive GUI. It is pluggable, allowing support for other download sites to be added in the future.
TorrentGrab is a script that searches isoHunt for specific keywords, parse results using regular expressions, and then downloads episode numbers not located in saved list. It's not too user friendly. Although configuration is straightforward, it still requires you to know regular expressions.