General Information: http://www.tax.ny.gov/research/property/
Contesting your assessment: http://www.youtube.com/watch?v=223MGuA8_fk&feature=related
About property taxes and assessments: http://www.youtube.com/watch?v=72QuLo5Q9MY
Is your assessment fair: http://www.youtube.com/watch?v=XO_wapm_VE8
Fair assessment guide: http://www.tax.ny.gov/research/property/assess/reassessment/fairassessments.htm