NEW YORK (

TheStreet

) --

ZipCar

( ZIP) tumbled 36.50% to $6.75, a new all-time low, on Friday after falling short of analysts' second-quarter estimates and relaying a disappointing outlook for the third-quarter and the rest of the year.

The car-sharing network reported a penny of earnings on $70.8 million of revenue for the second quarter. For the third-quarter, the company expects to generate between $74 million and $77 million of revenue, and for the full year, between $272 million and $278 million. Analysts surveyed by

Thomson Reuters

expect $80.27 of revenue for the third quarter and $285.80 for the full year.

Investor confidence in

LinkedIn

(LNKD)

sent shares soaring 16.04% to $108.51 on Friday. Not only did the professional network release strong

second-quarter earnings

on Thursday, but a positive outlook for the rest of 2012.

LinkedIn revised its guidance for third-quarter, predicting sales of $235 million to $240 million. Analysts surveyed by

Thomson Reuters

expect 16 cents a share on $236.06 million in revenue. LinkedIn expects revenue to be between $915 million and $925 million for 2012, up from the prior range of $880 million to $900 million.

Facebook

(FB) - Get Facebook, Inc. Class A Report

rallied after hitting a new 52-week low of $19.82 on Thursday.

Earlier this week, the Menlo Park, Calif.-based social network reported that almost 9% of its active user accounts are fake.

Shares closed up 5.24% on Friday to finish at $21.09.

Electronic Arts

TheStreet Recommends

(EA) - Get Electronic Arts Inc. Report

filed a lawsuit against social gaming company

Zynga

(ZNGA) - Get Zynga Inc. Class A Report

, claiming

The Ville

infringes on copyrights to its Facebook game,

The Sims Social

.

Shares of Electronic Arts closed up 5.28% to $11.97 and Zynga gained 0.74% to $2.72. Earlier in the week, Zynga reached an all-time low of $2.66.

--Written by Nathalie Pierrepont in New York.

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