Somehow, right from the start, they managed to acquire some followers - mostly between ten and twenty each. I don't know how those people found the accounts: perhaps they were 'suggested' to them by Twitter if they'd mentioned the company names in their own tweets?
I tracked the numbers of followers every day, waiting to see whether they were going to rise, or dwindle away. Seven weeks later, I still don't really know: there's a generally upward curve in the weekly totals (above), but nothing decisive.
A couple of weeks in, I added to the accounts with four new ones: following news of the London Olympics, Facebook's IPO, East Sheen (in West London) and one which combined news of all six tech companies, under the name Tech_Biz_Today.
The last had far more tweets than the others because it was getting all six of the original feeds, and it is now the most popular (26 followers, acquired in a shorter time than the original six). The least popular is the one about the Facebook IPO. Its only follower has been me, even though I have retweeted its messages to some of the other accounts, hoping to interest someone in following it. I can't understand why it has sat there so unloved when even my obscure East Sheen account, mostly full of irrelevant news about Wimbledon tennis, has found four followers. I have now changed its name from FB_IPO to FacebookIPOnews, but I don't suppose that will help.
This is still a work in progress. I'm going to have to keep following what happens because I want to know the end of the story.
And there are always little tweeks to be made. So this morning I realised that I might as well have the various accounts follow each other - because if someone takes an interest in one of them, they may look at who it is following and find one of the other accounts. Also, I wonder whether Twitter promotes accounts that seem to be acquiring new followers fast?
This process took the total followers of all the accounts up to 222. (But I will discount the ones that are really just me from future calculations.)
If Tech_Biz_Today is the most popular accounts (because it does so much tweeting?), I may start a Bank_Biz_Today, or something like that. Learn from what works...
Links to all the Twitter accounts are here.
My previous update about this is here.