Since I started working at SFI, I started writing and ads. Until then, I have never written ads. My opinion is that your ads must be:
1.Make it sound natural! When you write your own ad, try to make it sound as natural as you can. Write it as though you're saying it to someone else.
Don't be too stiff - you want your audience to feel accepted and understood.
Don't be too friendly, either - you could come off sounding fake.
2.Keep it brief! You should keep it short and striking. People don't have time to read an ad that requires more than about 30 seconds of their attention - or less. They're encountering your ad on their way to doing something else, like reading an article or getting off the train or bus they're riding. Your ad should be interesting enough to make a big impression using very few words.
These are two things that are important to me to write the ad.
Since I started working at SFI, I started writing and ads. Until then, I have never written ads. My opinion is that your ads must be:
1.Make it sound natural! When you write your own ad, try to make it sound as natural as you can. Write it as though you're saying it to someone else.
Don't be too stiff - you want your audience to feel accepted and understood.
Don't be too friendly, either - you could come off sounding fake.