Dapps that use Expanse are compiled to the following lists. They are listed in various stages of development (concept, working prototype, live/deployed). If you are developing a dapp, consider adding an entry to these listings:
Dappcentral – Sortable pages for Dapps with instructions, code validation, and network stats.
Dapps Mailing List – Mailing list for developers on Expanse (discontinued).
The offered decentralised services listed cover a wide range of areas including finance, insurance, prediction markets, social networks, distributed computation and storage, gambling, marketplace, internet of things, governance, collaboration, development and games.
What apps can we eventually expect? https://www.reddit.com/r/expanse/comments/2mnl7f/the_top_10_ether_dapps_of_2015/cm63nsf
In the future, dapps are likely to be listed and distributed in dappstores integrated in dapp browsers.