Today, a link for those of you who want to help actively in improving the Seoncd Life Experience: the JIRA: https://jira.secondlife.com
If you notice an error or you want to see an improvement, you can search here, whether anyone else had the same thought already and vote for the entry - or open your own entry.
One entry amongst my favorites is this: https://jira.secondlife.com/browse/VWR-7677
It is about making windlight available serverside.
The incredible lag bug that freezes everything on a sim as soon as someone TPs in or out, is here: https://jira.secondlife.com/browse/SVC-3895
Read in the JIRA yourself and find out more.