The industry has shown 35% growth in 2007, says World Wide Worx.
The taxman's R140 million e-filing system allows South Africans to file their income tax returns online.
The offering includes a fraud module which helps to reduce online credit card fraud for merchants.
Users claim to have access to other members' private information.
In today's technology roundup: Apple iTunes sells over 3bn songs, Sony PS3 faces another suit, social networks 'lure music fans', and Mozilla issues fixes for Firefox bugs.
In today's technology roundup: YouTube to use copyright checker, BBC offers IPTV, iPhone not affordable, and Wikipedia founder eyes open source search engine.
Having gone beyond the hype, the WiMax ball is finally rolling in earnest.
In today's technology roundup: Facebook charged with fraud, power outage darkens Web sites, and MySpace cuts 29 000.
In today's technology roundup: Bosses snoop on networking sites, Google may bid billions, Microsoft leads privacy code, and typo blamed for Vista muddle.
In this World Wide Wrap: Sage offers e-payment, Google targets news, and tourism looks to Web.
In today's technology roundup: PS3 sales hit 1m in Japan, Google loses market share to Microsoft, Mozilla patches Firefox and IE flaw, and most anticipated games of the year.
An Abuja-based fibre network links several Nigerian banks' branches, upping service delivery.