Ideas for Using Pinned Messages as Beta Test Opportunity Bookmarks

Any thoughts on using pined messages and/or bookmarks as bookmarks on the external site? The use case here is we have a channel where we post and chat about different beta opportunities. We'll post the "how to get access" either in a pinned message or bookmark (which is generally a form that needs actioned) but we're hoping all the communication stays in that same channel. I would imagine this being like a dedicated landing page for beta test opportunities with the first row being all active opportunities and the chat stream still being active below?