Twtbase, one the 15 Twitter databases we reviewed in our January 2009 article 15 Twitter Directories Compared, is up for sale on the Digital Point forums. Back in January, we made the following key points about the service:
Overview: Similar to Twitdom, Twtbase also houses their database of applications within Wordpress and divvies them up into either the web, mobile, desktop, or browser plug-in buckets.
What you might like: The thumbnail view. Each application has a screenshot, displays current rating, and number of votes. Twtbase also has a Site of the Day page that features one app per day.
What you won’t get: Selection. It’s difficult to ascertain exactly how many apps Twtbase has, but this reviewer estimates they’ve got about 80 applications in their database.
The selection issue is somewhat fixed, with Twtbase now listing 450+ apps, although the numbers are modest: the site serves 500 pageviews/day and makes "over $100" in ad revenues per month.
If you want your very own somewhat-average Twitter directory, the listing is here.
--
Disclosure: Mashable also maintains a directory of Twitter apps at our sister site Blippr.