18,278 subscribers a community for 1 year, 4 monthslast post 4 days ago [+]
Porn Gifs (not videos) lasting longer than 15 seconds. ~~ LONG gifs (>15 seconds) can be posted to gfycat if they are uploaded in gif format, not video format.~~
TIP: Gfycat now supports 1 minute clips through their standard interface!! ~~Gfycat limits uploads to 15 seconds if you're using the web interface BUT video files up to 1 min can be uploaded directly to gfycat via the Gif Brewery 3 Mac app (http://gifbrewery.com/). It's free (no upsell, ads or crippleware - gfycat acquired the app and it's to their benefit if you use it and their service).~~
The other way to upload to gfycat is to convert your video file to gif format first -- the restriction is 300mb, no time limit.