What is Space Junk? – Should we be Concerned?
Garmin 2599

Garmin nuvi 2599 Review – is it as good as TomTom?

TomTom Sat Nav Reviews – TomTom Go 5000

TomTom Sat Nav – High Speed Multi Charger
Best Sat Nav TomTom Go 50

TomTom Go 50 Review – Entry Level Navigation

How do Sat Nav Systems work? – The science bit