Geoff Lawton is arguably the most experienced and influential permaculture master currently teaching. His channel has many instructional and enlightening videos on permaculture and transitioning to a world of abundance for all. He also offers an online Permaculture Design Course that is world renown.
Backyard Aquaponics or BYAP is a great resource if you're new to aquaponics and want to learn what it's all about. BYAP released one of the first periodicals on aquaponics, BYAP magazine, and has a wealth of DIY knowledge and designs. Check it out!
If your regular news channels always drag you down, then check this site out! Always putting the planet and people first, Permaculture News provides great stories and information about what people are doing to create a world of abundance for all.
The Earth Policy Institute was founded by Lester Brown, an environmental analyst with over 25 honorary degrees. According to their website, the mission on EPI is "to provide a plan of a sustainable future along with a roadmap of how to get from here to there. EPI works at the global level simply because no country can fully implement a Plan B economy in isolation." Their website has tons of raw and processed data related to the environment and sustainability which is contained in the "data center" and is a fantastic resource for putting together presentations or reports.