Perception of Tag Clouds
Tag clouds have been subject of investigation in several usability studies. The following summary is based on an overview of research results given by Lohmann et al.:
- Tag size: Large tags attract more user attention than small tags (effect influenced by further properties, e.g., number of characters, position, neighboring tags).
- Scanning: Users scan rather than read tag clouds.
- Centering: Tags in the middle of the cloud attract more user attention than tags near the borders (effect influenced by layout).
- Position: The upper left quadrant receives more user attention than the others (Western reading habits).
- Exploration: Tag clouds provide suboptimal support when searching for specific tags (if these do not have a very large font size).
Read more about this topic: Tag Cloud
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