A new page on measuring gas consumption has been added by Practical Home Energy Saving. The page on measuring electricity consumption has been updated. Both can be found in the miscellaneous section.
Reading a gas meter can be somewhat confusing because there are two main types of meter with several variations of each type plus the fact while modern meters work in cubic meters the older ones work in hundreds of cubic feet. It is not always clear what is being measured and often the only way to find out is to look at the last gas bill to find out. Electricity meters are not that much simpler. Below are a selection of links with information on how to read a range of different meters:
How to read your gas meter from Which
How to read your gas meter from Citizens Advice
How to read electricty meters from USwitch
How to read electricty meters from Which