Comment with a button or banner linking to your collective/domain and people will respond with:
❶ Which current site of yours they like best and why
❷ Which upcoming site of yours they anticipate most and why
If you don't have future projects listed on your domain, you can list the sites you're currently working on or planning in the comment with your collective. Also, a lot of people like to keep their upcoming projects secret, so if you don't feel like listing upcoming sites, tell people to leave off the second part.