Recently active topics in Twitter tagged with tracking

I was wondering if there would be a function where you could see mutual friends between you and someone else. I think this would make sorting out friend requests from spammers and actual people a lot easier and make networking friends a lot less tasking.

Be great to be abe to see a ranking of the most popular tracked words/phrases among twitterers. The two 'charts' that I think would be especially useful (although there is scope for others) are:

(1) the most common trackwords added in the previous 7 days (to gauge what's on twitterers' minds currently), and

(2) simple ranking by number of tracks for a particular word/phrase (to gauge what interests us generally).

The ability to see a list of twitterers tracking a particular word would also be useful (provided they had 'opted in' to making their tracks public, for obvious privacy reasons) - it could be a great way to connect to others with similar interests.

Another useful feature would be a tool that would enable a user to input a particualr word or phrase and receive back tracking stats for that particular word/phrase (number of trackers, usernames of those tracking it publicly, etc) .

And if all this sounds like too much of a development challenge for the already-busy folks at Twitter, I'm fairly confident that with the appropriate API additions, third-party developers would rise to it. (I'm not a developer myself, I hasten to add, so for all I know this is already possible.)

I think it's time to take Twitter tracking to the next level. Here are some ideas I've had that I'd like to see implemented. Comment (implement!) away. :)

1. SMS command "block [username]" to be able to block a given user who you may be receiving too many messages or irrelevant messages from based upon your tracked keyword/s.

2. Allow people to track keyphrases. eg., I track "the basin" (it's a suburb) - but I always receive messages that only include "basin", which is completely pointless to me without the "the"!

3. Allow the use of Boolean to create complex tracking keywords/phrases IF the user wants to (ie., could be an advanced function available should people want it - otherwise stick with the basic single keyword for those who don't feel comfortable with Boolean). There should be no limit on the length of this type of keyphrase, in order to allow it to be very specific if required.
eg.,
-- "(bush OR forest OR scrub) AND fire AND (melbourne OR "black spur" OR kinglake)" would return any update with the words "bush fire", "forest fire", or "scrub fire" AND "melbourne", "black spur", or "kinglake"
-- "traffic AND "eastern fwy" would return any update with the words traffic AND "eastern fwy"
-- "(gig OR concert) AND (mebourne or sydney)" would return any update with the words "gig" or "concert" AND "melbourne" or "sydney".

4. Provide a web interface on twitter.com to allow people to properly administer their tracking keywords. This should include being able to view, add, modify, and delete your tracking keywords, as well as turn it on/off.
4.a. Provide screen to enter in complex Boolean keywords per point 3 in "advanced mode" (text box only for those who know what they're doing), and "wizard mode" that allows people to enter in keywords and select operators as needed from drop-down menus (eg., "I want to track wineries, but only in Yarra Glen" would automatically create " wineries AND "yarra glen" ".

5. Be able to set an option to only receive messages in your chosen language. It's pointless receiving messages that you can't read/understand. :)

6. Be able to include/avoid updates that span multiple messages. Not sure how it happens at the moment, but sometimes messages can arrive in 2-3 parts, when the total of all the characters is less than 140.

7. SMSing "track off" should NOT delete your tracking keyword list. It should remain stored on the Twitter system. Perhaps include a new SMS command "track delete" to delete your entire keyword list if necessary, whereas "track off" can be used to temporarily or permanently turn off tracking.

I really love how I get tweets found from my tracked items with the username in ( ) because I can see on my phone from just the first few characters that it is something that is important to me. I think it would be extremely helpful if the people that I typically get all tweets from would also be indicated in a similar fashion.

Say I am following @Person1 and @Person2 but only have @Person1 sent to my mobile device and I am tracking "trackedword". If @Person1 says the word it will come to my device as "@Person1 trackedword" but if @Person2 says it, it will be forced to my device and will come to my device as "(@Person2) tracked word" .... It would be nice if the same would be done with @Person1 even though I get all of his updates.