PPC is worth considering in order to drive traffic to the website. It is a relatively cheap form of marketing so as long as you use highly relevant keywords and do not compete for the post popular ones.
Consider that your advert may not even be clicked, but may still be seen. This means your business will be getting some exposure without actually paying for it.
Your adverts need to display on the first or second page of search results, otherwise they are unlikely to be seen or clicked.
Start with Google Adwords – it is worth reading all the tips and advice they give before starting creating adverts, as it will save time and wasted effort.