Updated examples.

Author: dblock

README.md

@@ -181,12 +181,13 @@ You can see a sample implementation in [slack-sup#3a497b](https://github.com/dbl
 
 ### Examples Using Slack Ruby Bot Server
 
-* [slack-amber-alert](https://github.com/dblock/slack-amber-alert), free service at [missingkidsbot.org](https://www.missingkidsbot.org)
 * [slack-sup](https://github.com/dblock/slack-sup), free service at [sup.playplay.io](https://sup.playplay.io)
 * [slack-gamebot](https://github.com/dblock/slack-gamebot), free service at [www.playplay.io](https://www.playplay.io)
 * [slack-market](https://github.com/dblock/slack-market), free service at [market.playplay.io](https://market.playplay.io)
 * [slack-shellbot](https://github.com/slack-ruby/slack-shellbot), free service at [shell.playplay.io](https://shell.playplay.io)
 * [slack-api-explorer](https://github.com/slack-ruby/slack-api-explorer), free service at [api-explorer.playplay.io](https://shell.playplay.io)
+* [slack-strava](https://github.com/dblock/slack-strava), free service at [slava.playplay.io](https://slava.playplay.io)
+* [slack-arena](https://github.com/dblock/slack-arena), free service at [arena.playplay.io](https://arena.playplay.io)
 
 ### Copyright & License