I run several websites either aimed at helping homeless individuals generally or that can be useful to people who are homeless. In addition to the above website (the San Diego Homeless Survival Guide), I also run:
Street Life Solutions
https://streetlifesolutions.blogspot.com/
Pocket Puter
https://www.pocketputer.com/
The Genevieve Files
https://genevievefiles.blogspot.com/
Write Pay
http://writepay.blogspot.com/
They make me very little money, but some local homeless services and the local police department give out fliers of mine that list some of my sites. At least one local individual got back into housing, probably in part because of the information on my sites. I was acquainted with him and gave him a flier personally.
The police department seems to be my best ally in that regard. Unlike most homeless services,* they don't need the homeless problem to continue to exist to give their lives meaning or justify their paychecks. They would be thrilled to see the local homeless problem resolved so they could dedicate their limited resources to dealing with crime.
* (The Shirky Principle and Homelessness:
https://streetlifesolutions.blogspot.com/2018/07/the-shirky-...)
I'm still struggling to make ends meet and I seem to be making a dent in the homeless problem. It makes me really unsympathetic to arguments from more well-heeled people about how hard it is to solve or similar excuses for continuing to do nothing.