Okay this list is not definitive and anyone not here should add a link to their party/gathering in the comments. SES NY is one of the major events of the search year, so I hope many of you are attending. If not there will be people from all over live blogging the sessions.
So this is what I have so far;
Monday night Meet and Greet at the Hilton starts at 6PM
Tuesday there is a ScmoozeFest and Happy Hour for Affiliates - a group of sponsors and it is at Dave and Buster's so is always fun. So stop by and have a couple of drinks and some appetizers. Runs 5-7:30pm
There is also a SEMPO gathering at the Hilton - come meet the new board and have a drink. Starts at 7pm and location is on the Meetup site listed above.
There is an unconferenced Black Hat White Hat sessions at the Bridges bar in the Hilton - space is limited so this should be fun.
Charity Party being run by WeBuildPages This is at Hurley's on 48th from 8-10pm and costs $30 for open bar - great deal - and money goes to the Homeless.
I will update as I hear of other things too.
Meet Your Favorite Search Engine Watch Contributors
Many of SEW's leading expert contributors will be at ClickZ Live, the new online and digital marketing event kicking off in New York (March 31-April 3). Hear from the likes of: Thom Craver, Josh Braaten, Lisa Barone, Simon Heseltine, Josh McCoy, Lisa Raehsler, Greg Jarboe, Dan Cristo, Joseph Kerschbaum, John Gagnon, Eric Enge and more!