FightAging has an extensive list of funds, nonprofits and blogs of interest listed on the right-handside and is itself a great resource.
Agingbiotechinfo - Karl Pfleger. Covers companies, conferences, diagnostics, resources, and more.
Longevity List - Nathan Cheng. Newsletter and list on major longevity companies.
Longevity Prize - VitaDAO & Foresight Institute. Awarding outstanding progress in longevity research — crowdsourced and curated by leading industry experts.