Just as you can search for an answer you can also use tags to find interesting content.
You will find the tag cloud on the right side bottom of the main page:
When you write a question it can be beneficial to others if you use keywords to tag your post for other users to find.
Tags that can be valuable for others are the ones that describe your particular post with keywords. For instance:
Your specific device
Your update environment (Home or MyTomTom)
When you start a topic you add your tags to your post on the left bottom side under the Sub forum field when you're writing a post:
Type your tag word into the field. Repeat this for multiple tags. You can separate the tags using a comma.
I hope this was helpful and should you need further assistance then please don't hesitate with asking.
All the best,