It's almost February in 2018, which isn't supposed to be the proper time to cycle these, but for this year it'll be once again, so we'll be refreshing the Community Promotion Ads for this year now!

What are Community Promotion Ads?

Community Promotion Ads are community-vetted advertisements that will show up on the main site, in the right sidebar. The purpose of this question is the vetting process. Images of the advertisements are provided, and community voting will enable the advertisements to be shown.

Why do we have Community Promotion Ads?

This is a method for the community to control what gets promoted to visitors on the site. For example, you might promote the following things:

  • the site's twitter account
  • code puzzle blogs and websites
  • interesting challenge sites
  • cool events or conferences
  • anything else your community would genuinely be interested in

The goal is for future visitors to find out about the stuff your community deems important. This also serves as a way to promote information and resources that are relevant to your own community's interests, both for those already in the community and those yet to join.

Why do we reset the ads every year?

Some services will maintain usefulness over the years, while other things will wane to allow for new faces to show up. Resetting the ads every year helps accommodate this, and allows old ads that have served their purpose to be cycled out for fresher ads for newer things. This helps keep the material in the ads relevant to not just the subject matter of the community, but to the current status of the community. We reset the ads once a year, every December.

The community promotion ads have no restrictions against reposting an ad from a previous cycle. If a particular service or ad is very valuable to the community and will continue to be so, it is a good idea to repost it. It may be helpful to give it a new face in the process, so as to prevent the imagery of the ad from getting stale after a year of exposure.

How does it work?

The answers you post to this question must conform to the following rules, or they will be ignored.

  1. All answers should be in the exact form of:

    [![Tagline to show on mouseover][1]][2]
       [1]: http://image-url
       [2]: http://clickthrough-url 

    Please do not add anything else to the body of the post. If you want to discuss something, do it in the comments.

  2. The question must always be tagged with the magic tag. In addition to enabling the functionality of the advertisements, this tag also pre-fills the answer form with the above required form.

Image requirements

  • The image that you create must be 300 x 250 pixels, or double that if high DPI.
  • Must be hosted through our standard image uploader (imgur)
  • Must be GIF or PNG
  • No animated GIFs
  • Absolute limit on file size of 150 KB
  • If the background of the image is white or partially white, there must be a 1px border (2px if high DPI) surrounding it.

Score Threshold

There is a minimum score threshold an answer must meet (currently 6) before it will be shown on the main site.

You can check out the ads that have met the threshold with basic click stats here.

  • 2
    \$\begingroup\$ When will the ads actually be live? It seems that I'm still getting 2017 ads... \$\endgroup\$ – totallyhuman Feb 4 '18 at 3:38
  • \$\begingroup\$ Update: this year's ads are now live! \$\endgroup\$ – totallyhuman Feb 5 '18 at 22:40

10 Answers 10


Over 600 online interpreters. Free of charge, open source, and ad-free.


Have a challenge idea? Iron out its bugs. Join us in the Sandbox!

  • \$\begingroup\$ Repost from 2017 \$\endgroup\$ – user45941 Jan 29 '18 at 5:45

Bookmarklet — no install needed!

  • \$\begingroup\$ TIL about this very useful tool, thanks! \$\endgroup\$ – ETHproductions Feb 2 '18 at 16:19

Esolangs.org - the esoteric programming languages wiki


Know how to vote!

  • 1
    \$\begingroup\$ Repost \$\endgroup\$ – Christopher Feb 27 '18 at 23:36
  • \$\begingroup\$ As a minor improvement I would suggest potentially moving the second line a tad to the right such that g's decender does not touch i's dot. \$\endgroup\$ – Jonathan Frech Sep 26 '18 at 16:09
  • \$\begingroup\$ I think byte count (without the hyphen) is more widely used than byte-count. \$\endgroup\$ – Jonathan Frech Sep 26 '18 at 16:14
  • \$\begingroup\$ This ad makes my mind automatically insert "Pick two." \$\endgroup\$ – Ørjan Johansen Dec 9 '18 at 18:08

Bounties for everybody

  • \$\begingroup\$ Repost from 2017 \$\endgroup\$ – user45941 Jan 29 '18 at 5:44
  • \$\begingroup\$ @Mr.Xcoder See the comments on the post from last year. \$\endgroup\$ – user45941 Jan 29 '18 at 18:28
  • 2
    \$\begingroup\$ PSA: If this is broken/incorrect, clear your cache and wait. If it doesn't come back up in 24 hours, then you can leave a comment. \$\endgroup\$ – Rɪᴋᴇʀ Jan 29 '18 at 19:24
  • 9
    \$\begingroup\$ I no longer think this is worth having. Just look at the "featured" tab. \$\endgroup\$ – mbomb007 Jan 31 '18 at 17:34

Want to improve your Jelly skills? – Join Jelly HyperTraining!

  • \$\begingroup\$ I honestly don't like the border too much, but I don't have much time to fix it now. If anyone can do it for me, you can get a non-border version here. \$\endgroup\$ – Mr. Xcoder Jan 29 '18 at 19:29
  • \$\begingroup\$ Good idea. You inspired me to make such an ad myself. \$\endgroup\$ – Adám Jan 31 '18 at 12:06
  • 1
    \$\begingroup\$ just a minor quibble, the fact that the J does not align with the "H T" really bothers me \$\endgroup\$ – Conor O'Brien Feb 9 '18 at 22:58
  • \$\begingroup\$ Note that the image of this ad has been updated since it was posted, you can visit the revision history to view it. The new image has been created by Adám. Feedback is welcome! \$\endgroup\$ – Mr. Xcoder Feb 12 '18 at 21:08
  • 1
    \$\begingroup\$ Want to post competitive answers is there any Jelly answer that isn't competitive? \$\endgroup\$ – MD XF Feb 19 '18 at 3:52
  • \$\begingroup\$ @MDXF yes there are. \$\endgroup\$ – user202729 Feb 23 '18 at 7:58
  • \$\begingroup\$ The image for this add appears to have disappeared. \$\endgroup\$ – Wheat Wizard Aug 7 '18 at 23:16

J and K are on topic too!

  • \$\begingroup\$ Do you pronounce "APL" as "apple" ever? \$\endgroup\$ – mbomb007 Jan 31 '18 at 17:36
  • \$\begingroup\$ @mbomb007 It's pronounced as the letters individually, but the room name is hardly the first Apple-based pun APL has. For example, Dyalog saves your session in a file called aplcore. \$\endgroup\$ – Pavel Jan 31 '18 at 17:48
  • \$\begingroup\$ @mbomb007 No, never when by itself, however I do when compound: APLTree, Py'n'APL, and as Pavel said, "aplcore" memory dumps. Apple APL puns date way back and are still comon. \$\endgroup\$ – Adám Jan 31 '18 at 18:11
  • \$\begingroup\$ PynAPL, funny. It also could've been APL-Py. \$\endgroup\$ – mbomb007 Jan 31 '18 at 19:03
  • \$\begingroup\$ @mbomb007 Taken. \$\endgroup\$ – Adám Jan 31 '18 at 19:45
  • \$\begingroup\$ Out of curiosity, did you design this ad yourself? It's very well done. \$\endgroup\$ – Pavel Feb 1 '18 at 6:19
  • \$\begingroup\$ Also, what does ⍺*⎕ do? \$\endgroup\$ – Pavel Feb 1 '18 at 6:21
  • \$\begingroup\$ @Pavel Thanks. Yes, I made it myself. In a dfn (anonymous lamda) it means the left argument, , (leftmost letter of Greek alphabet) to the power of, *, evaluated input, (ideogram for a console). Try it online! ⍺*⎕ is what you get if you hold the APL shifting key and type apl: Go to TryAPL and type Backtick,a,Backtick,p,Backtick,l! \$\endgroup\$ – Adám Feb 1 '18 at 9:13

Code a mobile app for PPCG!


Help this community grow -- follow us on twitter!

  • 1
    \$\begingroup\$ This is a demonstration post to indicate how this should look when an ad is posted. It also doubles as your twitter ad, but it's up to you if you wish to promote it by voting \$\endgroup\$ – Grace Note Jan 29 '18 at 4:23
  • \$\begingroup\$ FTFY. \$\endgroup\$ – flawr Jan 29 '18 at 9:23
  • 1
    \$\begingroup\$ @flawr FTFY. \$\endgroup\$ – Adám Jan 29 '18 at 9:37
  • 10
    \$\begingroup\$ @Adám Though the Twitter account also only has one P in its logo. \$\endgroup\$ – Jonathan Frech Jan 29 '18 at 18:04
  • \$\begingroup\$ @JonathanFrech You're right. Rolled back. \$\endgroup\$ – Adám Jan 31 '18 at 20:41

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