Introduction to smartphones - start here if you know nothing.
Android phones - a quick guide to Android.
A guide to GPRS - an explanation of GPRS, HSCSD and EDGE.
A guide to MMS - an explanation of Multimedia Messaging Service.
Samsung Smart Window (guest article) - An innovative transparent LCD screen transforms boring window displays.
Galaxy S4 rumours - Looking forward to the next Samsung Galaxy phone.
Secret DJ app review (guest article) - a cool music app for iPhones and Android
How cell phones evolved over time (guest article) - looking back over 3 generations of phones and the milestones in their evolution.
iPhone 5 rumours - shameless gossip and uninformed speculation.
Recycling your mobile phone - why and how.
Mobile broadband deals - a comparison of current deals.
Sim cards - deals and FAQs.
SAR values and health concerns - an explanation of specific absorption rate and its values for some popular phones.
Mobile phone unlocking - unlock codes for your phone.
Guest articles & how to submit an article
After 11 years of writing content, we've decided to throw open our doors and invite guest articles to appear on S21. Why? Because the world of technology is moving ever faster. Because mobile phones are converging with, well, pretty much everything. And because having new perspectives fosters debate and discussion.
So, what are we looking for?
First of all, quality not quantity. No cookie-cutter articles. No boring articles. No sales pitches. We're looking for lively discussion of current issues in the technology world - ideally the kind of articles that will attract plenty of feedback and debate from users. Also welcome are "how to" guides, news, etc.
Secondly, all articles must be original, not cut and pasted from previous works, and not something you've published or plan to publish elsewhere.
Thirdly, we're looking for knowledgeable writers. You don't necessarily have to be an industry expert, but you must have an interesting point of view, and be able to articulate it well. Please spell-check your writing.
Heck, that's a lot of stuff we're asking for. Why bother to write for S21?
Well, fame, for one thing! Get your name and your point of view in front of millions of readers. Yes, that's the size of our audience. We're one of the largest technology review sites in the UK.
Secondly, you can include links to your own site(s) where relevant. We don't restrict this to a single bio link. You can have more links if they are relevant to the article. In fact, please include helpful links - not just to your own site(s), but to all kinds of relevant places. We don't use nofollow or any funny business with links.
We'll feature popular articles in our sidebar, which will help to grab attention for your writing. We'll also tell people about your articles on facebook and twitter. Maybe even at the bus stop, if they're really good.
We reserve the right to edit articles e.g. to correct mistakes or make minor changes to the wording. We may also add or remove links in order to help the reader, although we guarantee that you can always have at least one link to your own site(s) if you want.
As we're new to guest articles, we're probably going to make up more rules as we go. Please bear with us.
To get started, please email your article to us: email@example.com. Please include your article as a Word, HTML or text attachment, or just in the body of the email. Please include your name and a short bio, so that people know who wrote the article. You can attach a photo of yourself, or any relevant images. If you use Google Plus, we'll create an author page for you on our site and do the necessary linking to validate you as an author.
We'll reply usually within a day to say we've published your article, or if there are any problems with it. If you prefer, you can email us to suggest an idea for an article before writing one.