This week, 12 Internet Software & Services stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Qihoo 360 Technology Co., Ltd. ADR Class A (QIHU) improves from a B to a A rating this week. Qihoo 360 Technology Co., Ltd. ADR Class A provides Internet and mobile security products in the People’s Republic of China. The company also gets A’s in sales growth, earnings growth, and return on equity. For more information, get Portfolio Grader’s complete analysis of QIHU stock.

Demandware, Inc. (DWRE) earns a B this week, jumping up from last week’s grade of C. Demandware, Inc. provides a software-as-a-service e-commerce solution. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of DWRE stock.

comScore, Inc.’s (SCOR) ratings are looking better this week, moving up to a B from last week’s C. ComScore, Inc. offers a digital marketing intelligence platform that aids customers as they make business decisions and implement digital business strategies. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of SCOR stock.

Cornerstone Ondemand, Inc. (CSOD) is seeing ratings go up from a C last week to a B this week. Cornerstone Ondemand, Inc. provides learning and talent management solution delivered as software-as-a-service. The company also gets A’s in sales growth and earnings surprise. For more information, get Portfolio Grader’s complete analysis of CSOD stock.

NIC Inc. (EGOV) shows solid improvement this week. The company’s rating rises from a B to a A. NIC Inc. provides Internet-based electronic government solutions. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of EGOV stock.

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

This week, Channeladvisor Corporation’s (ECOM) ratings are up from a C last week to a B. The company also gets A’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of ECOM stock.

DHI Group, Inc. (DHX) boosts its rating from a C to a B this week. DHI Group, Inc. provides specialized career Websites and career fairs for professional communities. The company also gets A’s in operating margin growth, earnings revisions, and free cash flow. For more information, get Portfolio Grader’s complete analysis of DHX 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 earnings revisions. For more information, get Portfolio Grader’s complete analysis of ANGI stock.

This is a strong week for Jiayuan.com International Ltd. Sponsored ADR (DATE). The company’s rating climbs to A from the previous week’s B. Jiayuan.com International Ltd. Sponsored ADR is an online Chinese dating company. The company also gets A’s in earnings growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of DATE stock.

The rating of BroadVision, Inc. (BVSN) moves up this week, rising from a C to a B. BroadVision, Inc. develops, markets, and supports enterprise portal applications that enable companies to unify their e-business infrastructure and conduct both interactions and transactions with employees, partners and customers through a personalized self-service model that increases revenues, reduces costs, and improves productivity. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of BVSN stock.

Demand Media, Inc. (DMD) is seeing ratings go up from a C last week to a B this week. Demand Media, Inc. operates as a content and social media company in the United States that identifies, creates, distributes, and monetizes content. The company also gets A’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of DMD 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.