It's not uncommon for online businesses to market via traditional print or radio advertising. I think your question may be a little too broad though, as this sort of advertising isn't proper for all online businesses.
Would you like to share a little more about what you would be advertising so we can provide more accurate opinions?
Clothing line? Try Facebook advertising. You can also try traditional methods like getting some press coverage. Sell your product as something unique and different so that writers will want to talk about it.