Canada Benefits: I am a senior in Ontario
This Canada Benefits Web site provides an overview of all government benefit programs and services concerning seniors in Ontario.
Source: Government of Canada.

Ontario Benefits Directory - Ontario.ca
In Ontario, there is a wide range of benefit and tax credit programs designed to meet the unique needs of all Ontarians - families, individuals, seniors, persons with a disability and students. The Ontario Benefits Directory is a simple, easy and convenient point of access to many provincial benefit and tax credit programs.

Government Annuity Forms Listed by Title
The forms in this section are used by Annuitants or employers with registered employees who have Annuities under payment or payable in the future.
Source: Service Canada

Old Age Security Payment Rates
This chart shows the maximum and average monthly rates for Old Age Security (<abbr title="Old Age Security">OAS</abbr>), Guaranteed Income Supplement (<abbr title="Guaranteed Income Supplement">GIS</abbr>) and the Allowances, as well as the maximum annual income to be eligible for these benefits.
Source: Service Canada