Advertising Internationally

Just started using Adwords

[jcheung64]

To anyone that has an online business based out of the US. How effective is it to advertise internationally in locations other than the US? I currently have my settings on US only. That same question also applies to the language settings as well. Any feedback would be appreciated.

[humblebeginnings]

It all depends on what you're selling.
Some products are doing great in all nations but other products are only sold in very specific places. Good advertising is good targeting. So I wouldn't start a worldwide campaign for promoting a sale in a department store in for example Brazil. However, if you're selling for example books about a topic that is relevant in all countries (let's say about raising kids) I would give it a shot and start an international campaign...