| In the sponsorship of the arts there is a fine line between class and crass. |
| There has always been a fine line between legitimate puffery and misleading advertising. |
| With adware, which collects data on your buying habits, there's a fine line between what's legal and what's not. |
| Yet Widayanto has succeeded in treading the fine line between his pure art creations and his more commercial products. |
| Cyberspace creates a fine line between science fiction and popular theology, especially eschatology. |
| In Riyadh, the absolute monarchy of Saudi Arabia walks a fine line to maintain power. |
