Category Archives: Blog

The 5 People Who Could Destroy Twitter

June 5, 2009Blogcensorship, communication, Facebook, free-speech, hacked, MySpace, OpenID, phishing, security, self-censorship, social networking, social software, spam, trust, Twitter, url shortenersJason Morrison

I’m a fan of Twitter – it can be really useful. But status update services and microblogging are relatively young technologies. Twitter is the frontrunner now, but it’s still possible that everything could go south really fast. Here are five people (or more accurately, types of people) who could destroy Twitter and what can be done to stop them.

The list is in no order, except I’ve saved the most dangerous for last.

1. Spammers

Twitter spam is growing, and my guess is it’s a profitable business to be in. Spammers are getting crazy refollow-rates with very little effort put into their fake profiles. Part of this is a technical problem, with Twitter playing catchup to the collective innovative power of the greediest jerks on the internet. The more difficult part is social – users’ trust barriers are too low. Either Twitter finds ways to deal with this, or people will start treating reply tweets, direct messages, and invites the same way they do unsolicited emails now. One of the reasons I stopped logging in to MySpace was a flurry of fake friend requests that followed every session. Twitter runs that risk, in addition to the risk of service degradation.

What can be done? The good news is that no communication medium can be considered successful until someone has tried to send you unsolicited marketing and scams over it. But the Twitter team needs to redouble their efforts and head off potential problems proactively. For example, there are lots and lots of apps built on top of Twitter’s API – and almost all of them ask for your username and password. How long until one of those apps is compromised, or worse scammers make password-phishing apps of their own? Twitter needs to implement strong API keys or something like OpenID.

2. Anyone who uses url shortening services.

It’s hard to fit both a witty observation and a url in 140 characters, especially given url inflation. Bit.ly, Tinyurl, and the like perform the valuable service of giving you more space. They also cloak the destination of almost all the links on Twitter and get everyone used to following links blindly. I’ve already had friends whose accounts were hacked in order to send out a tweet like: “Check out this hilarious video: http://tiny/innocuousgibberish”. The New York Times’ account has been hacked, among others. Twitter can work on improving security and removing spam, but the more everyone uses url shorteners the more we train our friends to click recklessly. I’m as guilty on this one as anyone.

What can be done? People post links to Twitter frequently enough that maybe it should be separate field with it’s own character limit. If that’s too much complication for the brilliantly simple interface, maybe url previews should be enforced. Clients can do this now, but to be safe it should be done by Twitter.

3. Pirates, ninjas, zombies, and mafia thugs

Ah, I remember logging into Facebook the day I got my first “robots vs. hobos vs. Chuck Norris vs. etc.” request. “Ha,” I thought, “that’s a somewhat entertaining way to extend an internet meme into a social networking site.” Little did I know the horror that was about to unfold.

In all seriousness, the “tag, you’re it” games and gratuitous survey apps didn’t ruin Facebook, but they did make everything a bit more tedious. Those apps still fit within the umbrella of social networking – they don’t work at all in Twitter’s use model. When I log in, I want to see, very quickly, what the people I’m interested in are doing or reading. I don’t want to weed through their halves of various games I’m not interested in.

What can be done? This one is up to us – just don’t do it. Twittering with a hashtag for an event, a theme, etc. is fun and useful to others. Sending around vampire bites is not.

4. Chinese government officials

Think periodic fail whale sightings is bad for Twitter’s reliability? China can (and does) just block the whole site, most recently in advance of the Tienanmen Square anniversary. Why does this matter? China is a huge market, and growing. The days where being big in the U.S. meant major marketshare on the whole web are running short. What’s worse countries with theoretically free speech like Australia are following the Chinese model, proposing national internet content control (i.e. censorship).

What can be done? Many American companies just give up. Even Google has had to bend to government pressure. This is not easy to remedy. Perhaps there’s a way to take advantage of the small byte size of tweets, decentralize serving, and wrap access with something like Tor to get it through the Great Firewall. Let’s hope there’s a grad student or genius hacker out there with the right idea and Twitter is smart enough to hire them.

And finally, the absolute worst, most pressing threat the Twitter’s survival is…

(drumroll….)

5. Your mom

Despite the allure of turning this into one big “your mom” joke, I am completely serious. What happens when your mom joins Twitter? Do you censor yourself? Take your tweets private? Delete off-color tweets from your recent past?

There’s no right answer. Just about any social software eventually runs into this dilemma where the very different ways you communicate personally, professionally, and publicly collide.

What can be done? Some of the problem might fade as the userbase of sites like MySpace, Facebook and Twitter ages. But that will take years, so what can Twitter do now? It might help to have better relationship management. You could at least put your friends in one group and family in another. But in general, this strikes me as the toughest problem of them all – I don’t think there are any real solutions for the general possibility of parental embarrassment, or all efforts of every teenager in the world has yet to reveal discover them.

Disagree? Any threats I missed? Please post in the comments below.

Sick of compliment spam on your blog?

May 31, 2009Blog, Projectsblogging, comment spam, compliment spam, nofollow, PageRank, plugin, SEO, social engineering, spam, WordPressJason Morrison

One of the great things about having a blog is getting comments on your posts. It’s particularly gratifying when someone takes the time to tell you that your post was helpful, entertaining, or well-written.

Spammers know this and exploit it by generating compliment spam. They’ll put together a few lines of general praise and slather them across the web, hoping that bloggers will fall for the trick and post their spammy links.

Abusive social engineering like this really annoys me, so when in doubt I always do a Google exact phrase search to see if the compliment is really for me and not from a bot. This is tedious, so I created a simple WordPress plugin: O RLY Comment Spam Search.

You can get the plugin directly from WordPress.org, where you can also give it a rating to tell other webmasters how great (or non-great) it is. By the way, the plugin browser/installer added in WordPress 2.7 is very cool, and makes it much easier to try out plugins.

Judging by the thousands of blogs my O RLY searches have found, this sort of spam works. But why do spammers do it? Since WordPress (and most major blog systems) nofollow links in comments by default, the spammers can’t expect to gain any PageRank from these links. My guess is most of this spam is either intended to get traffic via clickthroughs or is generated by naive site owners, SEOs and marketers who don’t really understand how things work.

Take a look and let me know if it’s useful in the comments below. Also, let me know if it’s breaking on certain comments or otherwise buggy.

TinyUrl Trouble: Greasemonkey drops the location header in GM_xmlhttpRequest

May 21, 2009BlogAjax, bit.ly, firefox, firefox add-on, Greasemonkey, iframe, Javascript, kludge, redirects, tinyurl, Twitter, url shorteners, xmlhttprequestJason Morrison

I get a lot of ideas. Most of them wander aimlessly in my head until they become obsolete, but once in a while I’ll get an idea that seems useful and simple enough to do in my free time.

If you’ve used Twitter, you’ve seen the myriad of url shortening services like TinyUrl and Bit.ly. Url shortening services are a kludge and they break one useful, built-in feature of the web, which is the ability to know where you’re going when you click a link.

So I thought, this is something that I could fix in an hour or so with a Greasemonkey script. If you have no idea what I’m talking about, Greasemonkey is a Firefox Plugin that runs in your browser and lets you run your own Javascript on pages you load. Greasemonkey comes with a handy-dandy AJAX function called GM_xmlhttpRequest.

I figured all I have to do is grab all the anchors on the page, see if they match a list of shortener urls, do an xmlhttpRequest for each one and grab the final location (after the service finishes with it’s redirecting) from the headers.

Something along these lines:


function getTargetUrl(short_url) {

  GM_log('Getting '+short_url);

  GM_xmlhttpRequest({
      method: 'GET',
      url: short_url,
      headers: {
          'User-agent': 'Mozilla/4.0 (compatible) Greasemonkey',
          'Accept': 'text/html'
      },
      onload: function(responseDetails) {
          GM_log('Done.  Status ' + responseDetails.status +
                ' Text ' + responseDetails.statusText + '\n\n' +
                ' Headers:\n' + responseDetails.responseHeaders);
      }
  });
}

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Category Archives: Blog

TinyUrl Trouble: Greasemonkey drops the location header in GM_xmlhttpRequest