One is to create a section based on a search. Type your keyword(s) and at the bottom of the results you’ll see a set of links. Click the top one:

This will create a link on the left hand side of the page among the existing topics:

Click on that and you’ll see, on the right hand side, an edit button:

Use that to tweak the search terms, as well as limit your sources to a particular country (or U.S. state):

Use the button at the bottom to delete a section.

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Access to company information greatly varies from country to country and even among regions within the same country.

In the USA, for example, each state has its own data-bases and protocols. Although basic information is often free-of-charge, in many cases you will have to pay an access fee. In some countries, particularly in the developing world, you have to physically visit the deeds office or government departments. When the data is not available from the authorities, commercial companies often aggregate the information as part of business intelligence services — which can be very expensive.

It is therefore important to know what process to follow, and where to go, when planning your investigative story.

The ID website seeks to provide you with a one-stop guide, giving you the latest available advice on the most efficient ways to access company data.

Pajek (Slovene word for Spider) is a program, for Windows, for analysis and visualization of large networks. It is freely available, for noncommercial use. 

Analyst’s Notebook is part of the i2 Intelligence-Led Operations Platform, delivers the richest assisted analysis and visualization capabilities in the world to support analysts in quickly turning large sets of disparate information into high-quality and actionable intelligence to prevent crime and terrorism.

NetMiner is an innovative software tool for Exploratory Analysis and Visualization of Network Data. NetMiner allows you to explore your network data visually and interactively, and helps you to detect underlying patterns and structures of the network. 

UCINET is a social network analysis program developed by Steve Borgatti, Martin Everett and Lin Freeman. The program is distributed by Analytic Technologies. UCINET works in tandem with freeware program called NETDRAW for visualizing networks. NETDRAW is installed automatically with UCINET.

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One option, if that’s the case, is to use a separate app for collecting thoughts and a limited range of bits and pieces so you can sort them more easily. Here are some options, all for Windows (though Mac versions may exist):

CintaNotes

SimpleNote

SpringPad

Thinkery

Treemap Guide from ManyEyes: A tree map is a visualization of hierarchical structures. It is very effective in showing attributes of leaf nodes using size and color coding. Tree maps enable users to compare nodes and sub-trees even at varying depth in the tree, and help them spot patterns and exceptions.

To make a simple Treemap, create three columns. The first is the topic or category, and then the sub-topic or actual elements. Then the value in the final column determines the size of the square itself:

Will become when pasted into ManyEyes:

Alternatively, there’s a gadget for Google Docs spreadsheets which slots straight into your spreadsheet:

Here are some more links to explore:

• An Easy Way to Make a Treemap 
• Some examples of use in news
• An Excel plugin
• A standalone program from MacroFocus (free for 30 days)