Enhanced Rich Media Advertising

1. Expanding Adverts:

• Go Live Time: 5-7 Business Days (Assumes complete provision of assets for all panels. In-house design requires an additional 3-5 days).
• Leaderboard: 50kBs initial load. Maximum of 3 additional loads at 15kBs each, 200px maximum height for all child files.
• Skyscraper: 50kBs initial load. Maximum of 3 additional loads at 15kBs each, 200px maximum width for all child files (must be designed to open left).
• Frequency Capping: None required.
• Rollover-expands should automatically close when the cursor moves off the banner or additional load file but still contain a clearly labelled “close” button, 16 pt. font minimum.
• Click-expands can stay expanded until the user clicks a clearly labelled “close” button, 16 pt. font minimum.

2. Float-In Adverts:

• Go Live Time: 5-7 Business Days.
• Float-in animation lifecycle: 3 seconds maximum.
• Initial animation layer dimensions.
  > 728x90 Leaderboard - 728x290 - Anchor top left for animation.
  > 160x600 Skyscraper - 360x600 - Anchor top right for animation.
• Frequency Capping: 1 advertisement every 24 hours per user.

3. Video Streaming Adverts:

• Go Live Time: 7-10 Business Days.
• Up to 2 MB of high quality streaming media.
• Streaming Video: No more than 30 seconds duration on any pages.
• The Frames per second (FPS) should not exceed 18fps. Settings greater than 18fps will result in poor performance for many of our users and is not allowed.
• Bandwidth detection set to exclude dial-up (excludes 14% of visitors to nature.com).
• Frequency Capping: None required.
• Video animation can autostart.
• User-initiated audio only - must contain clearly visible “audio / on off” and “stop / play” functionality.

Suitable original video formats for conversion to DART Motif:
Electronic: FLV, AVI, MPEG, MOV, WMV, other un-encoded formats
Physical: Digital Beta, DVCAM, MiniDV, DVD, VHS