Guest blogging is an incredible resource, one that is often ignored as a valid promotional technique. Because in the end, that is exactly what it is: a way of promoting your website, your niche and – above all – yourself. It might not pay, which puts a lot of people off, but it has an incredible payoff by way of increased visibility and tapping into new reader pools that may not have followed you before.
The most invaluable thing provided by your guest posting is that you are increasing your experience and your presence on the web. You are putting yourself out there to be viewed as someone who really knows there stuff, and who is trusted by other experts in the field to contribute to their popular and entertaining/informative site. This will give you greater leverage when it comes to setting rates in the future, showing your portfolio to potential clients, and just expanding the worth of your own blog in both monetary value and exposure.