Welcome to hubpages.
You have to sign up as an affiliate to Google and Amazon, then add your codes to your account. Only then your hubs will be linking to them. For Amazon products, you have to add them using the Amazon module while writing the hub.
To get followers, follow the hubbers of your interest. Some of them may follow you back, some won't.
Write more useful hubs of adequate length. More people will read your hubs and those you like them may follow you.
Participate in the forums.
Read others hubs and write comments on them, if you like. Some of them will return the favor by following you.
All the best.