看到 PostgreSQL 發表官方 Twitter 帳號的消息：「Announcing @postgresql」。
The PostgreSQL Global Development Group is pleased to announce the launch of the official community Twitter handle: https://twitter.com/postgresql
@postgresql will contain a mix of automatic and manually curated postings from a group of volunteers that feature various aspects of PostgreSQL and the community-at-large. Content will contain a mix of news, advice, and highlights around PostgreSQL, and enable the PostgreSQL Global Development Group to further engage with the community. If you would like for @postgresql to highlight PostgreSQL-oriented content, we encourage you to reach out to @postgresql via Twitter’s direct message feature.
本來的 Planet PostgreSQL 也會繼續服務：
The live feed for blog entries syndicated from Planet PostgreSQL will continue to be available at https://twitter.com/planetpostgres
還是繼續用 RSS 訂閱就好 XD
在 Twitter 上看到他們自家更新了 2FA 的機制，除了本來的 in-app verification 外，也提供常見的 HOTP 了：(掃 QR code，然後會產生六碼數字的那種)
在上面的「How to use login verification」連結可以看到 HOTP 的設定方式：
- You will see a pop-up window displaying a QR code. Follow the instructions listed.
- To set up the third-party authenticator app, you will need to scan the QR code. You will then see a 6-digit numeric security code.
- Enter this code in the Security code text field in the pop-up window.
- Click Done.
Twitter 放出 Vireo，一套以 MIT License 釋出的 Video Processing Library：「Introducing Vireo: A Lightweight and Versatile Video Processing Library」。專案庫在 GitHub 的 twitter/vireo 可以取得。
用 C++ 寫的，另外也已經提供 Scala 的接口，這應該是讓 Twitter 的人可以方便使用：
Vireo is a lightweight and versatile video processing library that powers our video transcoding service, deep learning recognition systems and more. It is written in C++11 and built with functional programming principles. It also optionally comes with Scala wrappers that enable us to build scalable video processing applications within our backend services.
在 Tools 的部份也可以看到很多功能，像是：
thumbnails: extracts keyframes from the input video and saves them as JPG images
viddiff: checks if two video files are functionally identical or not (does not compare data that does not affect the playback behavior)
另外要注意的是，預設不會將 GPL 的套件納入編譯，需要指定
The following libraries are disabled by default. To enable GPL licensed components, they have to be present in your system and --enable-gpl flag have to be explicitly passed to
看起來主要就是最常見的那包... (libavformat / libavcodec / libavutil / libswscale / libx264)
TechCrunch 上看到的，俄羅斯政府不只在美國選舉時這樣做，同時也在英國脫歐公投的議題上進行操作：「Twitter says Russians spent ~$1k on six Brexit-related ads」。
In response to the Commission’s request for information concerning Russian-funded campaign activity conducted during the regulated period for the June 2016 EU Referendum (15 April to 23 June 2016), Twitter reviewed referendum-related advertising on our platform during the relevant time period.
Among the accounts that we have previously identified as likely funded from Russian sources, we have thus far identified one account—@RT_com— which promoted referendum-related content during the regulated period. $1,031.99 was spent on six referendum-related ads during the regulated period.
With regard to future activity by Russian-funded accounts, on 26 October 2017, Twitter announced that it would no longer accept advertisements from RT and Sputnik and will donate the $1.9 million that RT had spent globally on advertising on Twitter to academic research into elections and civil engagement. That decision was based on a retrospective review that we initiated in the aftermath of the 2016 U.S. Presidential Elections and following the U.S. intelligence community’s conclusion that both RT and Sputnik have attempted to interfere with the election on behalf of the Russian government. Accordingly, @RT_com will not be eligible to use Twitter’s promoted products in the future.
在「140 Vs. 280: Users Engage With Longer Tweets Data Shows」這邊分析了在 Twitter 上 0～140 與 141～280 字的 tweet 所帶來的互動差異：
可以看到較長的 tweet 會有比較多的 retweet 與 like，不過更細一步的分析就沒有了... 文章內也有提到資料的分析是怎麼來的：
The data parameters: 30,000 publisher tweets that included links between November 29 – December 6.
The results: The click-through rate was roughly equal for both tweet length types but overall engagement nearly doubled for longer tweets. On tweets containing 141-280 characters, the average retweet was a staggering 26.52% – compared the 13.71% for tweets with 0-140 characters. For likes, tweets containing 141-280 characters had an average of a whopping 50.28%, compared to 0-140’s 26.96%.
Twitter 在 Stanard API (Free & Public) 與 Enterprise API 中間要推出 Premium API：「Introducing Twitter premium APIs」。
不過在 Pricing 頁面上還點不出價格... (給了一個 404 page XD)
Twitter 這陣子最有明得應該是 140 chars -> 280 chars，不過有媒體發現名字描述的長度也提昇了：「Twitter now lets your display name be longer too – up to 50 characters」。
You were previously limited to 20 characters, but now you have 50 to work with.
在「Study finds fringe communities on Reddit and 4chan have high influence on flow of alternative news to Twitter」這邊看到的：
After analyzing millions of posts containing mainstream and alternative news shared on Twitter, Reddit and 4chan, Jeremy Blackburn, Ph.D., and collaborators found that alt-right communities within 4chan, an image-based discussion forum where users are anonymous, and Reddit, a social news aggregator where users vote up or down on posts, have a surprisingly large influence on Twitter.
依照對 reddit 與 4chan 的描述，這兩個媒體對 Twitter 的影響，會讓我聯想到在台灣 Ptt 對各新聞媒體的影響：Ptt 是很多新聞的起點？
"Based on our findings, these smaller, fringe communities on Reddit and 4chan serve as an incubation chamber for a lot of information," said Blackburn, assistant professor of computer science in the UAB College of Arts and Sciences. "The content and talking points are refined until they finally break free and make it to larger, more mainstream communities."
真的研究應該可以看出 Ptt 的影響力？
看到「How big is Twitter Moments?」這篇，在談 Twitter Moments。
依照推算，Twitter Moments 的使用量應該比全世界任何一個媒體都大，但你會發現實際上沒有音量。沒有人談論他，沒有人引用他... 但估算起來他應該是超級大的產品？
Twitter 打算放寬 140 字限制：「Giving you more characters to express yourself」。
We want every person around the world to easily express themselves on Twitter, so we're doing something new: we're going to try out a longer limit, 280 characters, in languages impacted by cramming (which is all except Japanese, Chinese, and Korean).