There are all sorts of services that will automate your Twitter activity, but you need to show a bit of intelligence when you set them up otherwise you could end up sending pointless tweets that do your brand harm, not good.
I know this, because the following just happened to me…
I tweeted a few photographer followers for some advice about buying a new digital compact camera. In one of the Twitter conversations that followed, I specifically said I was NOT after a digital SLR camera.
A couple of minutes later I get the following tweet:
@Tristan_Young Want a Digital SLR Camera? Here’s an overview of the most popular ones…
with a link which I won’t post because @SLR4u don’t deserve it.
This is just a mild example, but it makes the point that automation doesn’t always work on Twitter.