The grades of 19 Internet Software & Services stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

LinkedIn Corporation Class A (LNKD) shows solid improvement this week. The company’s rating rises from a C to a B. LinkedIn Corporation Class A operates a social networking website used for professional networking. The company also gets A’s in sales growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of LNKD stock.

This is a strong week for MercadoLibre, Inc. (MELI). The company’s rating climbs to A from the previous week’s B. MercadoLibre, Inc. operates an online trading site for the Latin American markets. The company also gets A’s in operating margin growth, earnings growth, earnings surprise, and return on equity. For more information, get Portfolio Grader’s complete analysis of MELI stock.

Alibaba Group Holding Ltd. Sponsored ADR (BABA) improves from a C to a B rating this week. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of BABA stock.

SINA Corp. (SINA) boosts its rating from a B to a A this week. SINA Corp. is an online media company and mobile value-added information services provider in the People’s Republic of China and in Chinese communities around the world. The company also gets A’s in earnings surprise and earnings momentum. For more information, get Portfolio Grader’s complete analysis of SINA stock.

Shutterstock, Inc. (SSTK) earns a A this week, jumping up from last week’s grade of C. The company also gets A’s in earnings growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of SSTK stock.

Shopify, Inc. Class A’s (SHOP) ratings are looking better this week, moving up to a B from last week’s C. The company also gets A’s in sales growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of SHOP stock.

This week, Wix.com Ltd.’s (WIX) ratings are up from a B last week to a A. The company also gets A’s in sales growth and earnings surprise. For more information, get Portfolio Grader’s complete analysis of WIX stock.

Yelp Inc. Class A (YELP) gets a higher grade this week, advancing from a C last week to a B. Yelp Inc. Class A hosts an online database of user-generated reviews of local businesses. The company also gets A’s in sales growth, earnings revisions, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of YELP stock.

The rating of GoDaddy, Inc. Class A (GDDY) moves up this week, rising from a C to a B. The company also gets A’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of GDDY stock.

This week, Alarm.com Holdings, Inc. (ALRM) pushes up from a B to a A rating. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of ALRM stock.

Yandex NV Class A (YNDX) is seeing ratings go up from a B last week to a A this week. Yandex NV Class A operates an Internet search engine in Russia and internationally. The company also gets A’s in earnings growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of YNDX stock.

Carbonite, Inc. (CARB) shows solid improvement this week. The company’s rating rises from a C to a B. Carbonite, Inc. provides online backup solutions for consumers and small and medium sized businesses. The company also gets A’s in sales growth, earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of CARB stock.

This is a strong week for Rightside Group Ltd (NAME). The company’s rating climbs to A from the previous week’s B. The company also gets A’s in earnings surprise and earnings momentum. For more information, get Portfolio Grader’s complete analysis of NAME stock.

RetailMeNot, Inc. (SALE) boosts its rating from a D to a B this week. The company also gets A’s in earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of SALE stock.

This week, Amber Road, Inc.’s (AMBR) ratings are up from a B last week to a A. The company also gets A’s in earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of AMBR stock.

Angie’s List, Inc. (ANGI) gets a higher grade this week, advancing from a B last week to a A. Angie’s List, Inc. engages in collections of consumer reviews on local service providers ranging from home improvement to healthcare. The company also gets A’s in operating margin growth, earnings revisions, earnings momentum, and return on equity. For more information, get Portfolio Grader’s complete analysis of ANGI stock.

The rating of China Finance Online Co., Ltd. Sponsored ADR (JRJC) moves up this week, rising from a C to a B. China Finance Online Co., Ltd. Sponsored ADR provides integrated financial products and services in the People’s Republic of China. The company also gets A’s in sales growth, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of JRJC stock.

Remark Media, Inc. (MARK) improves from a C to a B rating this week. Remark Media, Inc. is focused on developing social media businesses that incorporate relevant, high quality content. The company also gets A’s in sales growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of MARK stock.

CYREN Ltd. (CYRN) earns a B this week, jumping up from last week’s grade of C. The company also gets A’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of CYRN stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.