diff --git a/content/u/blog/how-to-sustainable-store-your-data/contents.lr b/content/u/blog/how-to-sustainable-store-your-data/contents.lr
index 701c135..439dbb7 100644
--- a/content/u/blog/how-to-sustainable-store-your-data/contents.lr
+++ b/content/u/blog/how-to-sustainable-store-your-data/contents.lr
@@ -58,6 +58,8 @@ local hydropower plant)
   halls
 * instead of buying new servers, we buy 2nd hand (with new disks/ssds)
 
+![](/u/image/environment-chat.jpg)
+
 ## The sustainable data center
 
 With this approach, there is practically no CO2 emission from power
@@ -67,20 +69,16 @@ products that are built with sustainability in mind:
 
 ![](/u/image/carbonzero-energy-green.jpg)
 
-* [Sustainable Data Storage: Glarnercloud](https://ungleich.ch/en-us/cms/glarnercloud/)
+* [Sustainable Data Storage: Zero Carbon Cloud](https://ungleich.ch/u/products/zero-carbon-cloud/)
 * [Sustainable Virtual Private Servers: Data Center Light](https://datacenterlight.ch)
-* [Sustainable IPv6 only VPS: IPv6 Only Hosting](https://ipv6onlyhosting.com/)
 * [Sustainable IPv6 VPNs: IPv6VPN](https://ipv6vpn.ch)
-* [Sustainable IPv6 Backup](https://ungleich.ch/en-us/cms/ipv6-backup/)
+* [Sustainable IPv6 Backup](https://ungleich.ch/u/products/backup/)
+* [Sustainable Matrix chat](https://ungleich.ch/u/products/hosted-matrix-chat/)
+* [Sustainable Mattermost chat](https://ungleich.ch/u/products/zero-carbon-chat/)
 
 In our opinion, we can only reach sustainability, if we take actions
 in all fields of our daily life.
 
-In case you are looking for an affordable way of testing the products,
-you should not miss the [Black IPv6
-Friday](https://swiss-crowdfunder.com/campaigns/black-ipv6-friday?locale=en),
-which has *up to 50% discount on the products*.
-
 If you have any questions or comments, you can reach us at
 **sustainability at ungleich.ch** or in the [ungleich
 chat](https://chat.with.ungleich.ch).