If you live in the UK and you're interested in voicing your concern over Uganda's Kill the Gays bill, you can write to your MP, and representatives of the House of Lords, using WritetoThem.com
To find your MP, simply enter your post code. To find a Lord, head here and enter 'Uganda', 'Gay Rights' or 'LGBT' into the 'Find a Lord interested in my topic:' box.
There is an FAQ here to help you to run a letter writing campaign.
Below are a couple of responses from letters so far. If you get a response and you'd like to share, please drop a comment and a link below.