Amplifying your content means that you need to either pay for it or earn it. Buying online attention means investing in a Google AdWords campaign, buying an email list or implementing some Facebook advertising. This can be done fast if you have the funds allocated. They are the catalysts to accelerating your marketing campaigns.
Earning attention to get your content shared takes time. You need to build the email list, grow your Twitter followers and acquire more Facebook fans. This requires a variety of tactics and some expertise. It will also take patience and persistence and creating the best content you can. It also can be slow and tedious. But if your funds are limited then you have to go out and earn that attention.