"A list of free general directories. These sites accept general submissions from English language sites. This category is reserved for general web directories that offer some sort of "no cost" registration and placement and provide a dofollow link. This type of listing would not require anything in return, such as a reciprocal link."
No cost, do follow, and no reciprocal link are the points that caught my eye. The link:
Free Directory List - 3000 General Web Directories Offering No-cost Submission.
Note: I have no affiliation with this service.