Here’s my recommendation for online ink: CompAndSave.com. I buy my ink there. Their customer service is great, shipping is quick and cheap – free on orders $50+. They have the best prices and the quality is guaranteed.
Here’s the link for the combo packs – my favorite way to keep what I need for printing on hand:
Printer Cartridge Combo Pack Deals at CompAndSave.com
And another for this week’s Friday Ink Deal: