Syncthing GTK is a GTK3 & Python GUI for Syncthing, which includes a tray icon / Ubuntu AppIndicator. In case you're not familiar with Syncthing, this is a cross-platform peer-to-peer file synchronization client/server application written in Go, similar to BitTorrent Sync. It can be used to synchronize files between computers however, unlike BitTorrent Sync, Syncthing is open source. 

For more information, see our article on Syncthing.

Syncthing GTK is a GTK3 & Python GUI for Syncthing (which comes with a web GUI only by default). The tool supports basically all Syncthing features:

Tribler is an open source, decentralized peer-to-peer client based on the BitTorrent protocol, available for Linux, Windows and Mac OS X.

Like other BitTorrent clients, Tribler features a search box you can use to find content however, the search results come directly from other peers, without using a central server and this makes it immune to government anti-piracy attacks (the application will continue to work if the torrent trackers are pulled offline), claims an article from dailymail.co.uk.

The application includes features such as wiki-style channels, video-on-demand (watch videos while you download them) and more.

The tool is free for personal use (1-3 teammates), with unlimited syncing and 1 collaboration folder or, if you want unlimited collaborators, you must pay a fee of $10 per teammate/month. AeroFS is available for Linux, Windows, Mac OS X and Android.

(New Haguichi icon for Elementary Dark panel)

Haguichi is a Hamachi and Hamachi2 GUI for Gnome.

"Hamachi establishes a connection over the Internet that emulates the connection that would exist if the computers were connected over a local area network." So it's like a LAN over the internet which you can use to browse shares or play games that only work on LAN (among others). We've covered Haguichi quite a few times so read our previous posts for more info.

A new Haguichi version (1.0.3) has been released today which adds theme specific panel icons for Humanity, Ambiance, Radiance, Elementary and Elementary Dark.

Firstly, an introduction so you'll know what this is about:

In the same PPA as EiskaltDC++ there's another, some might consider better Direct Connect client for Linux called FreeDC++.

FreeDC++ is a fork of LinuxDC++ with many useful changes - which make it a great replacement for StrongDC and other such Windows Direct Connect clients.

The most important features are: Magnet links support, themes (including smileys), animated status icon and of course, all the other features you would expect in a Direct Connect client.