I thought I'd explain how you can use a webpage/app like Endomondo to keep track of your ridden distances. I started tracking my ridden distances and speeds about two years ago, mostly to help me get Oskar fit for Trec, and get a better idea of typical ridden speeds to improve our performance on the POR.
Endomondo is a (free) web service that keeps track of your workouts, and allows you to interact with other users. First, you create an account online. Use the "settings" to choose whether you want to keep your workouts completely private, make them visible to "friends" only, or visible to all. You can add a workout by hand on the webpage by drawing the route you've ridden on a map. You can add your start and end time as well, and choose your type of exercise ("Riding"). The "statistics" tab allows you to view a summary of your past workouts, for example each month's total ridden distance - very convenient for The Long Ride.
If you own a smart phone, you can download the free Endomondo app. If you activate and stop the app before and after each ride, your ridden distance, time, speed, elevation gain etc. will automatically be uploaded to your web account. This way, you don't have to enter each workout by hand.
For extra fun, you can issue or participate in "challenges". For example, there's a challenge running for The Long Ride, which will count each participant's distance ridden from August 4th until next year, and shows who is in the lead. If you decide to sign up, search the Challenges, using the pull-down tab to restrict to "Riding", and you'll find The Long Ride challenge. Then click "Join". The more the merrier! . 
Maike & Oskar 

Note: you still need to send in your ridden distances via this site 

One more person - and there will be 20 committed riders, trying to ride all the way to Berlin. We also have 3 teams now: Solva Icelandics, Meadow Head Icelandics and Take it isi. Teamwork is the way to go if you do not want to go the whole way.
At the moment the "shortest" registered distance is 1061 km, and the longest 1883km.
Here in the north we are currently 4 riders in the "take it isi" team, which shortens the personal target to approx 470 km over the next 355 days - much more manageable!

Together we’ll be there! 

Here is some food for thought: Today is the 29th July, and so far 9 riders have registered. If we add the individual targets together, we get to a total of 13,054km. That would mean ca 40 riders will make our target 44,000km - the circumference of the globe. That's  BIG!  
But then again: shared joy is double the joy, and shared miles are half the miles. Most of us will travel much more comfortably together.... 
Gundula