We all love the convenience of mapping apps, but many of us would prefer that the app stick with a route we know is golden, rather than rerouting us all over the place to save a few minutes in traffic.

If you want to know the postcode for a given location, you can find it out with Australia Post's search site or some quick Googling. But if you want to see how postcodes are constructed, the Australian Postcode Decoder offers a neat graphical representation.

Whether you are just looking for something fun to do this weekend or planning an active overseas holiday, Everytrail.com is an awesome tool for those who like to get out and go.

Feral animals -- non-native species that are roaming in the wild -- pose a major challenge to the Australian ecosystem. Throughout January, the ABC is collecting data on feral animal sightings to build up a picture of where feral animal populations are located.

Google Maps is already an essential traveller's tool, but two of the features in its new Labs experimental sectionare extremely handy for frequent road warriors and help reduce longstanding Google annoyances. Here's why Drag 'n' Zoom and What's Around Here belong in your arsenal.

In the GPS world, nothing much comes for free, but Navigon's new iPhone direction-finding app comes close: you can install it for nothing and check out a pretty comprehensive set of Australian maps.