There are lots of websites that can help improve your time online. This page is intended as a non-exhaustive list of links to free resources that might help you when flying online. You will also find plenty of resources available on local websites.

Charts

Navigraph A payware resource for viewing charts worldwide and updating AIRAC data.
VATSIM Charts An old site with links to various chart sources (some links are outdated).

Who's Online

VATSIM Statistics List of currently connected members
VATSpy A Windows program displaying a map of pilots and controller locations.
vRoute Windows program showing online members by country.
Vattastic Browser map of pilots and controllers.
QuteScoop An open-source multi-platform traffic viewer.

Flight Planning

vRoute vRoute accepts flightplan submissions from members around the VATSIM world.
Simroutes A collection of flightplans, predominantly for USA routes.
VATroute A collection of flightplans, predominantly for European routes.
Little Navmap A free open source flight planner, navigation tool, moving map, airport search and airport information system.

Training

VATSIM Pilot Resource Centre Tutorials and guides for the basics of flight.
Official VATSIM training organisations Links to all of the organizations authorized to perform VATSIM pilot training.

Free Model Matching

FLAI Model Matching for VATSIM A completely free model matching AI package for P3D and FSX.