How to Recover Deleted Coursera and Berkeley Courses from

In June 2016, deleted 472 open online courses as it migrated from an old system to a new system; from March to August 2017, UC Berkeley made all 350+ courses on Webcast.berkeley private. Fortunately, most of these courses have been archived by the Archive Team. This post provides the instructions for downloading and opening the archived courses.

Recovering UC Berkeley courses

Recovering Berkeley courses is easy. Go to this link:

and find the course you want to watch and click on the link to in the right column. You can watch the videos online or download them. You can find archived course descriptions in this page or search in Berkeley’s academic guide.

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The Deterioration of Coursera

Coursera is the biggest massive open online course (MOOC) platform founded in 2012 with over 1900 courses currently being offered. The website today is nothing like what it used to be in 2015, especially after moving to a new system in mid-2016. It’s not surprising that Coursera remains the alpha in the MOOC industry since it’s an oligopolistic market with universities mostly sticking to the same platform over time. But it’s mind-blowing to know that highly competent people can create a great platform and then destroy it a few years later.

So what happened? For each good feature they added, they removed five other great features. After the 2016 update, course providers are no longer allowed to place a promotional video in the course description and old videos are removed. Users could no longer click on professor names to see their profiles, which took Coursera a year to fix this problem. Professors should deeply appreciate the reappearance of their profiles, because not only are links to university profiles gone, the catalog of all university providers has also been deleted recently.

Coursera has redefined MOOC to be Monthly Open Online Course, as most of the courses now are running a new session every month, and even allowing students to switch sessions if they miss any deadline, helping procrastinating students strengthen their habit of ignoring deadlines. With so many ongoing sessions at once, course sizes have decreased dramatically and the discussion forums are now for roam, as students stare at the blank screen and wonder why nobody complies when the professor asks them to write down their thoughts in the forums. Forum posts are never kept from session to session, strangling the only way left to revive the forums. The collaboration with Coursera is gone too, and the Coursera experience is now predominantly solitary. Continue reading “The Deterioration of Coursera”

Top 6 Online Course Professors

This is an ranked up-to-date list that includes my favorite professors after taking more than 40 online courses. Professor quality is judged from how provocative, engaging, and clear the lectures are. The number and length of available courses is also considered. The amount of study materials available, video quality, and interest in subject are not directly considered.

1. Robert Sapolsky, Biology professor at Stanford University


Robert Sapolsky is best known for his Human Behavioral Biology course on YouTube. He has three other paid courses available on He studies human behavior by drawing comparison from baboons and using neuroscientific, evolutionary, and endocrinal approaches, which shows the different ways of looking at human behavior only complement each other instead of being contradictions.

Sapolsky is hands-down the god in conveying passion through lectures. His tone of speaking every sentence makes you really want to hear the next sentence yet the shock of the information he throws at you makes you want to pause and think. Just hearing his voice will cure depression and anxiety.

No whiteboard notes or study materials; yet he had ignited my interests in behavioral sciences and first introduced me to the field of complex systems. After taking his Human behavioral Biology course, the non-majors courses I took in the three semesters left in college increased to about 60%.

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9 Chrome Extensions for Surfing the Web Statistically

There are a lot of data on the web that can help us surf the internet more efficiently. The extensions listed below help us achieve this. Some extensions collect data from the users and summarize them, some analyze user-generated content, while others record the history of web pages. SEO oriented extensions are excluded from this list.

1. Alexa Traffic Rank


This extension shows the global website traffic ranking of the current website as well as the ranking in the country that generates the most traffic for this website. This is the quickest way to learn about a website’s popularity and credibility. Moreover, it shows websites that are similar to the current one with remarkable validity. This enables a graph based traversal of the internet. The Wayback Machine link allows the user to view old versions of the main page of the current website. To view old versions of any web page, there is a dedicated extension listed below at #9.

Upon clicking on the main link, it shows the traffic distribution overtime, by country, subdomain, gender, education, and browsing location. Traffic data is collected mainly through the Alexa Toolbar and this extension.

Number of users: 550,000

Alternatives: SimilarWeb with better graphics but less reliable traffic rankings.

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