New York Cares is taking online signups for volunteers interested in being part of the relief response. They'll have more details about specific relief efforts soon.
New York's City Hall is looking for volunteers too — email firstname.lastname@example.org.
Food Bank New York City is open and accepting donations.
The flooded neighborhood of Red Hook, Brooklyn is seeking donations of "already prepared food, utensils such as spoons and bowls, gallons of milk, flashlights, batteries, candles, papers towels, and paper for printing fliers" — more information at (347) 770-1528 or email@example.com.
The Committee Against Anti-Asian Violence is at work helping those without power in Chinatown, and is seeking volunteers.
Brokelyn has a guide for where to volunteer the weekend of November 3 and 4.
The Brooklyn Recovery Fund is seeking donations, all of which will go to relief efforts in the borough.
Lower East Side Recovers has a list of volunteer and donation needs.
The state has set up an emergency volunteer hotline, 1-800-537-7397 (that's 1-800-JERSEY-7). Backup numbers are are 609-775-5236 or 908-303-0471.
State officials say residents should conserve water, since the state is currently using backup generators to treat and pump water. They ask everyone in New Jersey to avoid watering lawns, and take showers instead of baths.
The Maryland Emergency Management Agency (MEMA) has provided a list of volunteer organizations.
Contact a local Red Cross chapter in order to volunteer or donate; the organization is handling most of the relief effort in the state so far.
AmeriCares is sending teams throughout the affected region, and you can learn more and donate here.
You can donate money to the Red Cross, or you can donate blood — the charity is calling for donations from people outside the affected area to make up for storm-cancelled blood drives.
The Salvation Army is accepting donations at www.SalvationArmyUSA.org, by calling 1-800-SAL-ARMY (1-800-725-2769), or texting the word “STORM” to 80888 to make a $10 donation through your cell phone. Volunteers can register at www.disaster.salvationarmyusa.org but must already have disaster relief training.
Feeding America is taking donations for food, water, and other supplies it's sending throughout the affected area.
FEMA has a list of charitable organizations accepting donations in all the affected states.
A number of religious organizations are joining in the relief effort, including the Jewish Federations of North America, the United Methodist Committee on Relief, and Church World Service. Forefront Church has dedicated hurricane relief funds for Manhattan and Brooklyn.
Sandy didn't just affect the US — Operation USA is providing relief to areas in Cuba and Haiti damaged by the storm, and they're taking donations too. Direct Relief International is providing aid in both Haiti and the US.
The International Rescue Committee is also at work on hurricane relief in Haiti, and is taking donations.
We'll be updating throughout the day with more information — email firstname.lastname@example.org if you have suggestions.