Online graphic design is becoming ridiculously competitive. Those who go out in search of clients have an uphill battle, trying to sell something that can probably be bought much cheaper elsewhere.
So stop trying to find clients. I think the future – in any online industry – is in giving clients a reason to find you. Not the means. I don’t mean “SEO” or ads or any other online marketing widget. I mean making them go “A-ha!” when they arrive on your site.
How you blow their socks off is the million Dollar question, but don’t focus on the value for money that you offer. That’s the most traveled route and it does not make people go “A-ha!”. It makes them go “Hm, not bad. I wonder if I can get this even cheaper.”