update broken links

Author: jasonrandrews

content/learning-paths/cross-platform/eigen-linear-algebra-on-arm/_next-steps.md

@@ -8,10 +8,6 @@ further_reading:
         title: Eigen official Tutorial on Matrix class
         link: https://libeigen.gitlab.io/docs/group__TutorialMatrixClass.html
         type: documentation
-    - resource:
-        title: CS Tutorial on Eigen
-        link: https://cs2240.graphics/assignments/eigen_tutorial.pdf
-        type: documentation
     - resource:
         title: Eigen Webinar from Linaro
         link: https://static.linaro.org/connect/webinars/presentations/Eigen_Webinar_3.pdf

content/learning-paths/laptops-and-desktops/win_aws_iot/how-to-2.md

@@ -10,7 +10,7 @@ layout: "learningpathall"
 In this section, you connect the emulator to AWS IoT Core.
 
 ## Connecting the emulator
-Log in to the AWS Console at https://www.console.aws.amazon.com, and then search for IoT. From the list that appears, select **IoT Core**:
+Log in to the AWS Console at https://aws.amazon.com, and then search for IoT. From the list that appears, select **IoT Core**:
 
 ![fig1](Figures/01.png)
 

content/learning-paths/servers-and-cloud-computing/intro/find-hardware.md

@@ -18,7 +18,7 @@ Cloud providers offer Arm instances based on Neoverse processors. For example:
 - [Microsoft Azure](https://azure.microsoft.com/en-us/blog/azure-virtual-machines-with-ampere-altra-arm-based-processors-generally-available/)
 - [Oracle Cloud](https://www.oracle.com/cloud/compute/arm/)
 - [Equinix](https://deploy.equinix.com/product/servers/c3-large-arm64/)
-- [Scaleway](https://www.scaleway.com/en/amp2-instances/)
+- [Scaleway](https://www.scaleway.com/en/cost-optimized-instances-based-on-arm/)
 - [Hetzner Cloud](https://www.hetzner.com/news/arm64-cloud)
 
 Free tier offers are currently available.

content/learning-paths/servers-and-cloud-computing/mongodb/benchmark_mongodb.md

@@ -9,7 +9,7 @@ layout: "learningpathall"
 ---
 To further measure the performance of MongoDB, you will run the [Yahoo Cloud Serving Benchmark](http://github.com/brianfrankcooper/YCSB).
 
-[YCSB](https://research.yahoo.com/news/yahoo-cloud-serving-benchmark/) is an open sourced project which provides the framework and common set of workloads to evaluate the performance of different "key-value" and "cloud" serving stores. Here are the steps to run YCSB to evaluate the performance of MongoDB running on 64-bit Arm machine.
+YCSB is an open sourced project which provides the framework and common set of workloads to evaluate the performance of different "key-value" and "cloud" serving stores. Here are the steps to run YCSB to evaluate the performance of MongoDB running on 64-bit Arm machine.
 
 ## Additional software packages