Gowalla is a fun application. Geotagging is fun. But please, think before you geotag.

It would be really easy to use 4sq or gowal.la as "todo" list for a burglar - but this is nothing we recommend or encourage!

Do not tweet/blog about your vacation plans. Dont use you´re voicemail to tell poeople when you are away. Use email auto responders wisely - dont tell exctly when you are on vacation.

Use timers on lights, your tv etc so it looks like you are at home. Arrange for a friend to pick up your mail so your mailbox isn´t telling everyone that you arent at home.

If you have travelplans, don´t publish them publicly on the net..

Keeping in touch with friends on facebook and twitter is fun, and bragging about your trip is fun to.
Until you realize that your friends friend wasn´t just reading your travelplan, they planned to get your gizmos to travel as well.

Suggestions and ideas? Tweet me at @mrhandley