www.55places.com has information regarding retirement communities and relatable blogs. 

www.after55.com has articles about retirement living.

elderchicks.wordpress.com is a forum of senior woman sharing wisdom.

elderfreedom.net is looking to enrich the lives of seniors through their website.

www.elderoptionsoftexas.com/blogs-for-seniors.htm is an online directory for active seniors and children with aging parents.

www.greatseniorliving.com has a good variety of articles about health and wellness and other important topics.

www.houstonproperties.com/houston-neighborhoods/best-55-older-communities is a guide to 55 plus communities. 

www.theroamingboomers.com is a travel website with travel information (disclosure - they also own a travel agency).