Fixing and removing more links.

README.md

@@ -554,7 +554,6 @@ All these projects contain steps and resources required for reproduction.
 - [MakeCode Projects](https://makecode.microbit.org/projects/) - List of micro:bit projects you can do with the MakeCode editor.
 - [Tinkercademy Projects](https://tinkercademy.com/microbit/) - Collection of projects using the micro:bit and Tinkercademy Tinker Kit.
 - [Raspberry Pi micro:bit Projects](https://projects.raspberrypi.org/en/projects?hardware%5B%5D=microbit) - Collection of Raspberry Pi and micro:bit projects from the Raspberry Pi Foundation.
-- [Hackaday.io micro:bit Projects](https://hackaday.io/projects?tag=micro%3Abit) - Projects using the micro:bit tag in Hackaday.io, a collaborative hardware development community.
 - [Electromaker micro:bit projects](https://www.electromaker.io/projects?platform=microbit) - All the micro:bit projects posted to Electromaker, a platform for makers to showcase their projects.
 - [Saturday Science & BBC micro:bits](https://saturdayscience.org/bbc-microbit/) - Practical science and engineering projects with the micro:bit, explore physical properties with cool experiments.
 - [Maker Pro micro:bit Projects & Tutorials](https://maker.pro/microbit) - The micro:bit section of Maker Pro, a place for makers to share designs, collaborate, and learn how to take your product to market.
@@ -612,7 +611,6 @@ Useful Articles for developing on the micro:bit.
 - [micro:bit learning](http://www.microbitlearning.com/tag/microbit) - Blog with a section for articles showing how to use a wide selection of sensors with the micro:bit and the Arduino software.
 - [Adafruit Learn micro:bit section](https://learn.adafruit.com/category/micro-bit) - Adafruit Learning System section for the BBC micro:bit.
 - [BBC micro:bit - Kitronik University](https://www.kitronik.co.uk/blog/bbc-microbit-kitronik-university/) - A varied collection of micro:bit resources by Kitronik.
-- [Physical computing with the BBC micro:bit](http://www.teachwithict.com/physical-computing.html) - How to use different electronic components with the micro:bit.
 - [DF Robot micro:bit blog section](https://www.dfrobot.com/blog-tag-micro:bit.html) - Blog posts and articles about micro:bit from DF Robot.
 - [ElecFreaks Learn](https://www.elecfreaks.com/learn-en/) - ElecFreaks collection of experiments, tutorials and material for the micro:bit.
 - [Little Bird Guides](https://littlebird.com.au/guides/microbit) - Detailed tutorials showing how to use a wide range of sensors and accessories with the micro:bit.
@@ -755,7 +753,7 @@ Useful Articles for developing on the micro:bit.
 - [`@microbit_edu` on twitter](https://twitter.com/microbit_edu)
 - [`microbit_edu` on Instagram](https://www.instagram.com/microbit_edu/)
 - [`microbitfoundation` on Facebook](https://www.facebook.com/microbitfoundation)
-- [Micro:bit Educational Foundation on YouTube](https://www.youtube.com/channel/UCJRGTnzeb0esPmsE-mFkPGg/)
+- [Micro:bit Educational Foundation on YouTube](https://www.youtube.com/@microbit_edu)
 - [micro:bit Python mailing list (archived)](https://github.com/ntoll/microbit_mailman_archive)
 - [MakeCode Forum](https://forum.makecode.com/c/microbit/11)
 - [micro:bit subreddit](https://www.reddit.com/r/microbit/)
@@ -775,7 +773,7 @@ Do you know about any free online event with micro:bits? Please add them here, P
 - [microbit.org Support](https://support.microbit.org) - The support pages from the micro:bit Foundation is a great source of information, containing an extensive collection of FAQs, articles, and guides.
 - [Micro World Tour](https://microworldtour.github.io) - Before the micro:bit was released a few went on a tour to the world-wide Python community. A lot of interesting content and ideas on these micro:bit adventures.
 - [Parent's Complete Guide To The BBC micro:bit](https://www.kitronik.co.uk/blog/parents-complete-guide-bbc-microbit/) - Free resource to help parent's get actively involved in helping their children learn how to code, even with no prior coding experience.
-- [micro:bit Out Of Box Experience](https://support.microbit.org/support/solutions/articles/19000021613-reset-the-micro-bit-to-factory-defaults) - ([Source Code](https://github.com/lancaster-university/microbit-samples/tree/master/source/examples/out-of-box-experience)) The default program running on a brand new micro:bit.
+- [micro:bit Out Of Box Experience](https://support.microbit.org/support/solutions/articles/19000021613-reset-the-micro-bit-to-factory-defaults) - The default program running on a brand new micro:bit and its source code.
 - [Accessory Guide](https://microbit.org/buy/accessories/) - A constantly updated list of accessories for the micro:bit.
 - [pin:out](https://microbit.pinout.xyz) - A GPIO pinout interactive reference for the BBC micro:bit and accessories.
 - [Mewt](https://github.com/dakota-mewt/mewt/blob/main/README_Microbit.md) - Single button press to mute/unmute all system microphones, shows you status and when the microphone is actively broadcasting.