Usability and User Testing Apps

Here are some usability and user testing tools:

Personal preferences:


Other tools:


Also check the Usability Checklist

Or you can always ask people via: Amazon Mechanical Turk

Wireframing and Prototyping Tools

A list of wireframing and prototyping tools I encountered:

More tools at :

Futuristic devices & inventions available now

Here is a list of devices & inventions that caught my eye or I consider them to be somewhat revolutionary. Some you can by now and some you can preorder.


An interesting related read: Make It So: Interaction Design Lessons from Science Fiction

You can also build you own device using the different hardware prototyping platforms listed here: IoT part 2

Computer Science Career Finding Resources

Finding the right job or changing/starting your career path can be difficult, especially if you don’t know where to look. I compiled a list (in no particular order) of career opportunities from the Computer Science field.

Job opportunities in Romania:


International Careers:


Searching for jobs:


Disclaimer: The links presented above are listed in no particular order, as I don’t have any association with any of them. I chose not to include some local (Romanian) or some companies/startups (like twitter, facebook etc.) as it would take a lot of time to list/and find them all and also career opportunities (from these companies) are not always featured.

If you would like me to feature your company/startup careers/jobs you can find my contact information at

Resources for data visualization and interactive exploration

Here are a few visualization libraries (mainly javascript) and resources (blogs & galleries) I compiled.

Libraries (javascript):




Collection of books:


Professional (or very good) Tools:


Other Tools:

Semantic web resources – part 2

As a follow up to the previous Semantic web resources – part 1 post, this post is focused on listing some of the existing Ontologies and SPARQL Endpoints

(sort of a) Beginner’s Guide:


Examples of SPARQL Endopoints:


Tools & Other Resources:



Open data Sources

*This post is constantly updating so check back at any time. Last update: 05.November.2013*

Open Data Handbook –

School of Data Handbook –

Linked Data Patterns Book –

What is Open Data and how we might define it, you can find out more at Open Definition and Guide to Open Data Licensing made by Open Knowledge Foundation.

A great way to search for Open Data sources is: (doesn’t have all the sources, some of the ones I mentioned below are missing). – tool for working with messy data, cleaning it up, transforming it from one format into another

Another way to search for open public data is .

A great open source data portal software is: http://ckan.aorg/ . (used in many open data portals)

An interesting website (partly blog) about data and data visualization –

Open data policy and Definitions:


Various Types of Open Data:


Ocean Open Data:


Search Engines/Crawl Open Data:


Maps Open Data:


Weather Maps Open Data:


Library Open Data:


Newspapers Open Data:


Music/Movie Industry Open Data:


University Open Data:


Sensor Open Data:


Health Open Data Sources:


Financial Open Data Sources:


Government Open Data Sources:

Semantic web resources – part 1

Here are a few resources where you can find more about the semantic web. I tried to divide them according to certain categories. Also feel free to add your own in the comments.

This is just part 1 – I will follow up with additional resources such as books, articles and other related resources in future posts.

Semantic web resources part 2

(sort of a) Beginner’s Guide:


W3C Specifications (you might want to check out):




Microdata & RDFa:




(useful) Libraries: