https://www.google-melange.com/gsoc/homepage/google/gsoc2015 says Org Application Starts:
February 09 at 19:00 UTC, which is around the corner.

Google writes:

We're pleased to announce that applications for mentoring organizations for Google Summer of Code 2015 are now being accepted. If you'd like to apply to be a mentoring organization you can do so now via Melange. If you have questions about how to use Melange, please see our User's Guide. Please note that the application process remains the same as last year: to apply you must create your individual profile and then an organization profile before submitting your application.

Please note that the application period closes on 20 February at 19:00 UTC. We will not accept any late applications for any reason.

Outreachy writes:

We would like to promote the initial list of participating organizations on February 17, so please try to update your landing page and let us know by then if you will participate. We'll continue adding organizations through March 3 to allow more organizations to secure the funding and set up their landing pages.

The updated resources are:

• https://wiki.gnome.org/Outreachy/2015/MayAugust - a page with a timeline and participating organizations listing; if you have funds secured you can add your organization there (...)

I have added this comment to the 51 tasks that are currently associated with #Possible-Tech-Projects:

Wikimedia will apply to Google Summer of Code and Outreachy on Tuesday, February 17. If you want this task to become a featured project idea, please follow these instructions.

https://www.mediawiki.org/wiki/Outreachy/Round_10 exists. Later today I will update instructions in order to integrate better our Phabricator process. I will also add the projects listed as "Featured" at https://phabricator.wikimedia.org/project/board/1042/

The GSoC application has been submitted, but https://www.mediawiki.org/wiki/Google_Summer_of_Code_2015 still needs to created, and https://www.mediawiki.org/wiki/Outreach_programs/Possible_projects needs to be updated.

I'll do it tomorrow Friday.

In T921#1051919, @Qgil wrote:

The GSoC application has been submitted, but https://www.mediawiki.org/wiki/Google_Summer_of_Code_2015 still needs to created

@Nemo_bis was (a lot) faster. Thank you! I will fine tune it, and I will update Possible_Projects right now.

Accepted Orgs Announced On: March 02 at 19:00 UTC

Scoop!

Congratulations!

Your Organization Application for Wikimedia Foundation to Google Summer of Code 2015 has been accepted...

Reopening only because we are using Notice for the first time (hi @gpaumier), and I'm not sure how this works yet.

Also,

On Tue, Mar 3, 2015 at 5:12 AM, @Niharikakohli wrote:

Is a congratulatory mail to Wikitech-l/Wikimedia-l for GSoC selection in order?

Definitely! For GSoC and Outreachy, of course.

There are quite a few projects in the "Needs Discussion" and a couple in "Missing mentors" column on the workboard. How do we convince people to mentor for these? The Featured column barely hosts 7 projects yet.
Would it be appropriate to shoot a mail to the mailing list(s) asking for attention to some of these projects in need of discussion and/or mentors?

Please mention this in the same announcement. And let's continue discussing this "problem" in T91374: Select participants for GSoC 2015 and Outreachy round 10.

In T921#1081301, @Qgil wrote:

Reopening only because we are using Notice for the first time (hi @gpaumier), and I'm not sure how this works yet.

I'm not sure either, we're all figuring it out :)

I've triaged this Notice into User-notice and Developer-notice. Feel free to move it directly to the "Archive" column on the Developer-notice workboard once it's been announced on the list, since this doesn't need to be included in the release notes.

Actually already done per T91374#1081470.