According to Urban Dictionary
(A veritable cornucopia of streetwise lingo, posted and defined by its readers)

xanga:

The "trendiest" xanga -- an online journal must have the following information:

1) A list of every little thing that you did, including trips to the bathroom, shower, and anything personal that you should want the world to know.

2) If you went out, you must list every single person that you went out with. It's only a superb entry if you can list everyone. INCLUDING people you saw, people you met, people you wanted to meet and people you wanted to see.

3) In your status bar, you must "shoutout" to ALL the people you know.
OR
- Write a mushy lovey dovey poem, saying i miss you, i love you, i want you, why cant i have you, i cant live without you, i am so desperate for some ass, you know..that kinda stuff..

4)
a) To add some 'flavor' to the site, you must talk in incomprehensible ghetto slang that only you and your homies would understand. oh yea. almost forgot, you have to ToGgLe YoUr LeTtErS LiKe tHiS, oThErWiSe YoUr XaNgA eNtRy WiLl n0t Be CoMpLeTe!!
OR
b) You may choose to write babyish, cute, sweet, you know write in words that makes reading take longer than it should.

5) At the end of each entry you must force your xanga friends to 'drop you some epills' or 'holla baqq!' (whatever that means).

6) At the entrance and exit of your xanga page you MUST have consistent pop ups reminding people to eprop you, miss you, threatening to kill people if they don't eprop you, curse out those who tries to right click.

7) Remember to curse a lot, but ONLY show your status!! no need to make sense either.

8) Yes, and self adulation is everything. you must first write about how your ass is so fine, and convince others that it's true by posting pretentious pictures of yourself showing your 'fine ass' (i've seen some pretty bugly pictures on xanga). While flattering yourself, your self esteem is then boosted, allowing you to continue being an egomaniac.

9) Try to make each xanga entry as concise as possible. Shorten your entry to one word if necessary, then force all your friends and random people to eprop you, making yourself look important.

10) End each sentence with lol. LoL a lot.