12) EasyTrace PRO
This is a professional raster-to-vector conversion software that can do cartographic data management tasks. Its semi-automatic tool lets the user to take a map apart, process it and assemble it again. Price: Easy Trace for DOS is available free. EasyTrace Pro for Windows: EUR 999 (499 Euro for educational institutions).
http://www.easytrace.com/

11) AutoTrace - converts bitmap to vector graphics
The AutoTrace project aims to develop an open source, freely available (under GNU GPL terms) application with functionality similar to CorelTrace or Adobe's defunct Streamline. AutoTrace currently comes with source code and binaries — you have to compile the package for other platforms. After downloading the archive, unpack the distribution and use "make" to compile it. Here are some supported input formats: BMP, TGA, PNM, PPM, PGM, PBM and those supported by ImageMagick. Support export formats include Postscript, svg, xfig, swf, pstoedit, emf, dxf, cgm, mif, p2e and sk. Price: Open source (free)
http://autotrace.sourceforge.net/

10) Traceline
Traceline changes scanned or imported bitmap images to editable outlines (line art) that can be exported or pasted to other programs. This powerful app allows you to convert company logos, hand-drawn graphics, cartoons and photos to editable, scalable outlines. It can import an impressive number of raster formats. Use Traceline's intuitive editing tools to "tweak" your outlines for ideal results. You can quickly switch between the Object Editor, the Node Editor and Freehand Drawing. The program's vectorized output can be used in sign making, engraving, routing, animations, graphic design, and desktop publishing — or in any program that accepts .wmf, .emf, or Adobe Illustrator files. Price: USD $79.95
http://www.wissenuk.com/products/traceline.htm

9) Vextractor
Vextractor is a tool for transforming raster images into vector formats by building centerlines and outlines. This vector tool could be used for vectorizing charts, maps, schemes and other similar images for entering into CAD and GIS systems. An application has the option to set up a reference for images, in other words, to assign real coordinates to certain raster points. Thus, you get vector data not only in the raster coordinates, but also in the real geographical coordinates or in the chart coordinates. Price: USD $99 (volume licensing available).
http://www.vextrasoft.com/

8) Silhouette (previously known as Artline)
Silhouette provides quick tracing and a number of tools for tweaking your vectorized image, but don't start requesting only bitmap files from your clients just yet. FreeSoft has made its name in the sign-making industry with its FreeSign program for creating the quick signs you see at many "signs-in-a-hurry" places. The machines that create those signs require vector images to complete the cuts, so it's easy to see how that could lead to a demand for a product like Silhouette. Silhouette is a plug in for Adobe Illustrator 8 and later to convert bitmap images to vectors images with unique correction tools. It instantly converts black and white or color bitmap images into vector designs ready for use. Price: USD $192 / EUR 149 (Lite), USD $386 / EUR 299 (Pro) and USD $321 / EUR 249 (plugin)
http://www.silhouetteonline.com/silhouette/download.php3