The grades of 5 Internet Software & Services stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

This week, LinkedIn Corporation Class A’s (LNKD) ratings are up from a C last week 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.

LogMeIn, Inc. (LOGM) boosts its rating from a B to a A this week. LogMeIn, Inc. offers remote connectivity services to computers for mobile professionals, and help desk and systems administrators worldwide. The company also gets A’s in operating margin growth and earnings growth. For more information, get Portfolio Grader’s complete analysis of LOGM stock.

This is a strong week for Sohu.com, Inc. (SOHU). The company’s rating climbs to B from the previous week’s C. Sohu.com, Inc. is an Internet media company that serves as a daily source of information, communication and entertainment for millions of Chinese consumers. The company also gets A’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of SOHU stock.

Autobytel Inc. (ABTL) earns a A this week, jumping up from last week’s grade of B. Autobytel Inc. is an automotive marketing services company that helps automotive retail dealers and automotive manufacturers market and sell new and used vehicles through its internet lead referral and online advertising programs. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of ABTL stock.

Renren Inc. Sponsored ADR Class A’s (RENN) ratings are looking better this week, moving up to a B from last week’s C. Renren Inc. Sponsored ADR Class A operates a real-time social networking website. For more information, get Portfolio Grader’s complete analysis of RENN 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.