NEW YORK (

TheStreet

) --

Amazon

(AMZN) - Get Report

reported strong second-quarter revenue and profit on Tuesday, sending shares up more than 5% in after-hours trading.**

During the quarter, the e-commerce giant earned 41 cents a share on revenue of $9.91 billion. Analysts were expecting Amazon to report a second-quarter profit of 35 cents a share, compared with 45 cents in the year-ago quarter. Revenue was estimated to increase to $9.4 billion from $6.5 billion a year ago.

Looking ahead, Amazon expects third-quarter revenue between $10.3 billion and $11.1 billion, compared with analysts estimates of $10.35 billion.

Amazon began selling a cheaper version of Kindle with ads during the quarter, and the device was made available at

Wal-Mart

(WMT) - Get Report

.

Reports surfaced earlier in the month that

Amazon will introduce its own tablet device

to compete with

Apple's

(AAPL) - Get Report

iPad in the third quarter.

Amazon also recently announced a partnership with

CBS

(CBS) - Get Report

, giving its streaming access to the networks television programming and putting it in closer competition with

Netflix

(NFLX) - Get Report

.

-- Reported by Jeanine Poggi in New York.

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