Previously: Part 1 – Google Alerts, Part 2 – Technorati Watchlists, Part 3 – Twitter tracking.

This article is about following Delicious bookmark tags using RSS.

In a nutshell: use your RSS reader to notify you whenever someone adds a bookmark to Delicious and tags it “eastdulwich“

Delicious

The website del.icio.us (pronounced as “delicious”) is a social bookmarking web service for storing, sharing, and discovering web bookmarks. The site was founded by Joshua Schachter in late 2003, and was acquired by Yahoo! in 2005.
[Source: wikipedia]

Instead of using Firefox “Bookmarks” or “Favorites” (sic) in Internet Explorer, you can save URLs (web addresses) of the pages and sites you want to remember to your account on Delicious.

This means you can access your bookmarks wherever you go, rather than being tied to using the same computer.

You can also share your bookmarks, and see other people’s bookmarks. There is an optional setting to make any bookmark private.

When you save a bookmark you can add tags – or labels – to describe it, to make it easy to find and to group it with other similar bookmarks.

This also means that you can use delicious to track the tags you’re interested in.

There is an RSS feed available for all tags in delicious. Adding a tag’s feed to your RSS reader means you’ll be notified whenever your reader picks up a new item.

The page for all latest public bookmarks for East Dulwich is at http://del.icio.us/tag/eastdulwich, and the RSS feed at http://del.icio.us/rss/tag/eastdulwich.

As well as subscribing to feeds for tags you can also subscribe to feeds from people with accounts on delicious. My latest public bookmarks are at http://del.icio.us/beatnic and the RSS feed at http://del.icio.us/rss/beatnic

I have my own public delicious bookmarks automatically published to this website, resulting in posts with a title beginning “links for yyyy-mm-dd” (where yyyy-mm-dd is the date I saved the bookmarks).

Other social bookmarking websites are gaining in popularity – see this list on wikipedia – delicious is easy to use and one of the most popular, so should give a reasonable representation of what’s getting noticed on the web.

Previous articles covered Google Alerts and Technorati Watchlists.

This article is about Twitter and its tracking feature, using East Dulwich as the example subject.

Twitter

Twitter lets you share your thoughts with the world.

You can do this by text message (SMS), IM (instant messaging), via the Twitter website, or using a downloadable desktop application like Twitterific (Mac only).

Once you’ve set up your Twitter account you can start “tweeting” your updates. Sometimes called micro-blogging, it’s a bit like writing status updates in Facebook.

Your tweets will appear on your page on the Twitter website. My page is at http://www.twitter.com/beatnic and is public.

People who want to subscribe to your updates can become your “followers” – don’t worry it’s not as cultish as it sounds.

Your updates will appear on the Twitter public timeline. If you’d prefer not to be so public you can “protect” your updates – in this case people will need to request your permission to follow you.

If you’ve set yourself up with an RSS reader, you can add Twitter update feeds of the people you’re following.

People are using Twitter in all sorts of ways, including:

• The BBC tweets news headlines and links to the full articles on its website
• US presidential candidate Barrack Obama tweets about his campaign
• Transport for London tweets traffic updates (using a service called twitterfeed to convert RSS items to tweets.

Twittervision is a mesmerising website showing what people are tweeting right now, and where they are in the world. It’s a mash-up of Twitter – using a feed from the public timeline – and Google maps.

Tracking subjects on Twitter

One of the features of Twitter is the ability to “track” subjects.

You can do this using by text message (SMS) and IM. At the moment, this is limited to text message (SMS) only. [thanks to Andrew M for the correction - see comments]

Text or instant message Track East Dulwich to Twitter. You will immediately recieve a confirmation message.

That’s it. You’ll now receive updates for any public Twitter update mentioning the subject/s your tracking.

If you’re logged in to IM your updates will be by instant message only. Your text message updates from Twitter will be switched off until you log out of IM.

To stop tracking a subject, send a text or instant message with the words Untrack East Dulwich. Again, Twitter will send you an immediate confirmation message.

The rate of updates will very much depend on the subject you choose and the timing.

I’ve received one update for East Dulwich in the last three days.

Last night I tracked England and Croatia and received about 300 texts!

Cost of using Twitter with SMS in the UK

Sending a text to Twitter costs your mobile phone company’s standard text-message rate – watch out if you’re with 3 or T-mobile, according to this article on TechCrunch uk:

Note also that the 07624 in Twitter’s number (+44 762 4801423) means it is actually billed as “international” by 3 and T-Mobile, making it a pricey service for those who like to tweet via SMS.

Receiving text updates from Twitter is free in the UK. In the United States you pay.

The same Techcrunch article suggests a newly added a UK limit of 250 incoming texts per week.