You can't wait for your crowd to come to you... you need to go to your crowd! But then you might ask, "Where is my crowd?" Here's a better question to ask:

Who is your ideal funder? In other words, if they saw your campaign, there is a 100% chance they would back it.

Are you crowdfunding a book? Try going to book clubs. Are you raising money for a charity/research/cure? Reach out to local chapters or national associations.

You can also find forums and chat rooms in your space where you can engage directly with your target market to drive more traffic to your crowdfunding campaign.

For example, Reddit is a very active online community and there are even "subreddits" that cater to specific groups and categories, like fitness or music.