Treehugger is a publication. A guest article or an accepted pitch is the usual way for your site to show up.
Free directories that still accept submissions
No listing fee recorded for a typical submission. They can still reject the URL.
1263 destinations
Trello is a public profile site: you create an account and point it at your website URL.
Tripadvisor is a classifieds board: you post an ad and include your website URL.
Triplepundit is a publication. A guest article or an accepted pitch is the usual way for your site to show up.
Trovit is a classifieds board: you post an ad and include your website URL.
Ttlink is a social bookmark: you save your page on a public list.
Tumblr is a publication. A guest article or an accepted pitch is the usual way for your site to show up.
Tuugo is a public directory that still takes your website URL.
Twicsy is a social bookmark: you save your page on a public list.
Twitch is a public profile site: you create an account and point it at your website URL.
Twitter is a social bookmark: you save your page on a public list.
Twittley is a social bookmark: you save your page on a public list.
Tympanus is a publication. A guest article or an accepted pitch is the usual way for your site to show up.
Ubuntuforums is a forum. The usual path is a profile or signature that points to your site.
Ukeep is a social bookmark: you save your page on a public list.
Unsplash
unsplash.com
Unsplash is a social bookmark: you save your page on a public list.
Updatesee is a social bookmark: you save your page on a public list.
Upublish is a publication. A guest article or an accepted pitch is the usual way for your site to show up.
Upwork is a classifieds board: you post an ad and include your website URL.
Url is a social bookmark: you save your page on a public list.
Urlm is a social bookmark: you save your page on a public list.
Urlredirect is a social bookmark: you save your page on a public list.
Us is a forum. The usual path is a profile or signature that points to your site.
Usfreeads is a classifieds board: you post an ad and include your website URL.
What a free listing means here
Free is the cost of the door, not a promise of a link. Some free directories are slow, nofollow, or closed to thin sites. Read their rules first.