Here’s a list of my personal favourites:
PeteBathoArt – My Etsy Shop.
http://arttutor.com – A great resource for tutorials and a great community. Requires a monthly subscription to fully engage with the site.
http://www.purewatercolour.com – Owned by Patrick Ley-Greaves. The site offers free tutorials and an online community once you sign up for free membership.
http://www.tonygart.co.uk – Website of friend and fellow artist Tony Green. His work is documented there. Well worth a visit.
http://www.budeart.co.uk – My local art group.