CPLR § 3101 (facebook/myspace)

CPLR  3101 Scope of disclosure

Lentz v Nic's Gym Inc., 2010 NY Slip Op 06620 (App. Div., 2nd 2010)

CPLR 3101(a) is to be construed liberally so that there should be disclosure of any material that is even arguably relevant (see Shanahan v Bambino, 271 AD2d 519). However, "unlimited disclosure is not required, and supervision of disclosure is generally left to the trial court's broad discretion" (Palermo Mason Constr. v Aark Holding Corp., 300 AD2d 460, 461 [internal quotation marks omitted]; see Silcox v City of New York, 233 AD2d 494). The essential test is one based on "usefulness and reason" (Andon v 302-304 Mott St. Assoc., 94 NY2d 740, 746 [internal quotation marks omitted]). Here, the Supreme Court providently exercised its discretion in granting that branch of the plaintiff's motion which was to direct the defendant to allow the plaintiff to inspect the gym mats which allegedly caused her to fall and sustain injuries, and in denying the defendant's cross motion for a protective order.

And here is a recent decision on interweb discovery. Look for many more in the future. 

Romano v Steelcase Inc., 2010 NY Slip Op 06620 (Supreme Court, Suffolk County 2010)

The present application was brought on by Order to Show Cause. The Court has reviewed the submissions both in favor of and in opposition to the relief sought, as well as the applicable federal statutory law, specifically the Stored [*2]Communications Act, 18 U.S.C. ¶ 2701 et seq., which prohibits an entity, such as Facebook and MySpace from disclosing such information without the consent of the owner of the account (see, 18 U.S.C. ¶ 2702(b)(3); Flagg v City of Detroit, 252 FRD 352 [ED Mich 2008]).

You can read more over at NFP.