Week 8

Search Tools

Exalead

This engine makes use of exact phrases, words (operator:+), optional terms (operator: OPT),exclude term (-), prefix search (*), proximity search (NEXT), Logic (AND, OR), phonetic search (soundslike:....) and Approximate spelling search (spellslike:...). Many of these are standard boolean operators aside from operators such as "spellsslike:", which searches for an approximate spelling.I do not see this being any more useful that Google, as Google has all the same qualities.

Metasearch Tools

MetaCrawlerweb

 This engine searches mutliple directories by means of meta tags.The advanced search allows a much narrower list of available options. These include:

All of these words
The exact phrase
Any of these words
None of these words  Language search

I noticed this engine returns results that have sponsored entries mixed in. This engine would be particularly good for searching full text peer reviewed research or images as it searches multiple search engines for meta tag returns.Often, I have to search multiple sites for this information anyway and this would make it much easier.

Subject Directories
Infomine

Search tips for this site include operators that allow exact phrase, truncating, NOT, OR, AND. It also has a feature that allows one search word to not be any more than a specified number of words away from another search word (e.g. near4). This is pretty unique, I have never seen a function like this ( I can't imagine an instance where I might use it though). I will hold onto this link, it will be very useful to me.I can always use more places to find peer reviewed research papers for free!