The ratings of 4 Internet Software & Services stocks are down this week, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Bazaarvoice, Inc.’s (BV) rating weakens this week, dropping to a F versus last week’s D. Bazaarvoice, Inc. provides social commerce solutions which enable its clients to capture, display and analyze online word of mouth. The company also gets F’s in earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of BV stock.

YuMe, Inc. (YUME) gets weaker ratings this week as last week’s C drops to a D. The company also gets F’s in return on equity. For more information, get Portfolio Grader’s complete analysis of YUME stock.

Slipping from a D to a F rating, Marchex, Inc. Class B (MCHX) takes a hit this week. Marchex, Inc. Class B offers call-based advertising and related services, pay-per-click advertising and related services and proprietary traffic sources. The company also gets F’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of MCHX stock.

Bridgeline Digital, Inc. (BLIN) is having a tough week. The company’s rating falls from a C to a D. Bridgeline Digital, Inc. develops and services web application management software for businesses. The company also gets F’s in sales growth, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of BLIN 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.