Beeminder turned off the Nectar web app in January.
Nectar is open source, so there is always the possibility that someone else could start it up again in the future or that it will be merged with Beemind.me.
@matti – I assume you are asking because of your Beeminder Integrations MEGALIST thread. You can still add these seven integrations to that list. Users can always run their own copy of the Nectar web app if they want those six integrations and the Pebble integration does not require any backend service.
Thanks for everyone’s support and sorry for the inconvenience.