Here is a great news for book lovers.To cash in on the increasing popularity of electronic gadgets, the world's largest Internet retailer, Amazon.com, Inc. AMZN is reportedly adding a new member to its Kindle family.Though not much has been revealed about the latest e-reader, a few features are quite interesting. The new e-reader will be Amazon’s 8th generation of Kindle, with some improvement on the hardware front. The new Kindle will come with a case that can recharge the device and enhance its battery life. Reportedly, the new Kindle has been codenamed as "Whiskey" and its companion case "Soda".In addition to the improved battery life, the new Kindle is expected to be sleeker and thinner than the previous models. Also, the online retailer is said to be developing a separate, solar-powered case for this device.However, it is not yet clear if the new Kindle will differ from the previous ones in terms of price or other features.Amazon constantly upgrades its e-book reader and the related app to benefit customers and maintain its position as the leading e-book seller. The company with its Kindle upgrades has strengthened its presence in the market, and currently boasts more than 60% share backed by attractive pricing.The new Kindle, if priced competitively, will further help the company increase its traction in the growing e-book market.According to a report by PricewaterhouseCoopers, the consumer e-books (excluding educational publications) will reach the £1 billion mark in value by 2018. The e-book market has witnessed an unprecedented growth, as both authors and readers have benefited from it. However, if the Zacks Rank #3 (Hold) company is unable to build further on its Kindle, it could see its share of overall book spending decline.Stocks to ConsiderSome stocks that have been performing well are Travelport Worldwide Limited TVPT, Stamps.com Inc. STMP and Groupon Inc. GRPN. While Travelport and Stamps.com sport a Zacks Rank #1 (Strong Buy), Groupon has a Zacks Rank #2 (Buy).Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report AMAZON.COM INC (AMZN): Free Stock Analysis Report STAMPS.COM INC (STMP): Free Stock Analysis Report GROUPON INC (GRPN): Free Stock Analysis Report TRAVELPORT WWD (TVPT): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research