Let’s Keep It Simple:

Home Page and run of site leaderboard, 728×90 pixels (see example, above): $75 per week – four week minimum

Home page only 120×600 skyscraper: (see example, below) $50 per week -  four week minimum

Run of site 468×60 banner: (see example, below) appears below each post. $35/week (rotation). (four week minimum)

Run of site 234×60 sidebar: (see Britannica example, below right) appears to the right of each post. $25/week (rotation). (eight week minimum)

All website prices subject to a 20% discount when run in tandem with a print ad (any size) for same duration.

120x600 skyscraper

486x60 banner