Tested Links to other webpages:

Maintenance

http://blog.sew-classic.com/
This is a wonderful webpage and had a lot of sewing machine help and restoration tips. There is no sense in my trying to repeat what Jenny has put together here from her own work and experience.

http://www.sewusa.com/Sewing_Machine_Repair/Singer_Sewing_Machine_maintenance/Singer_301.htm
Here is a great source for tips on machine care and maintenance, this link takes you to the 301 mainteneance page, but from here you can link to their main page and other machine help.


http://sewingmachine221sale.bizland.com/store/index.html

This site has parts and tips for various machines, a little expensive, but when you really need something, it's nice to see what's out there. 


http://aces.nmsu.edu/pubs/_c/c-102.html
New Mexico State University - An in depth description of general sewing machine servicing and maintenance! This is what a machine needs every so often. You can do it yourself, or take your machine to a repair person. While I charge $25 an hour some charge much more and learning machine maintenance can save your machine and save you a lot of money.


Needles

http://sewing.about.com/od/sewingmachineindex/ig/Sewing-Machine-Needles/Enter their "Gallery" and it's a good start on needle information

http://www.schmetzneedles.com/education.html
Schmetz offers a lot of information here about needles. Of course their goal is that you buy theirs, but they do make a good needle. 

Some Industrial Sewing Machine 
Needle Chart
Make Model # Needle
Adler 67 135 x 5 (134)
Adler 98-2 134-35R
Adler 166 328R
Adler 167 135 x 5 (134)
Artisan 618-1SC / SC LTHR 135 x 17 & 135 x 16TRI
Artisan 797AB-800 / AB / ABN 135 x 17 & 135 x 16TRI
Artisan 797AB LTHR / ABNS LTHR 135 x 17 & 135 x 16TRI
Artisan 4420 / 4420-25 135 x 17 & 135 x 16TRI
Artisan 4400 / 4400-25 / LTHR 135 x 17 & 135 x 16TRI
Artisan 518 135 x 5 (134)
Artisan 2220M / B 135 x 5 (134)
Artisan 2240M / B 135 x 5 (134)
Artisan TORO 2600 328R
Artisan TORO 2500-132 328R
Bernina 217 16 x 95 (287WKH)
Brother TZB 652 / 651 16 x 95 (16 x 231)
Brother 714 / 735 / 755 16 x 95 (16 x 231)
Consew 272 135 x 5 (134
Consew 206RB 135 x 17 & 135 x 16TRI
Consew 225 / 226 135 x 17 & 135 x 16TRI
Consew 99 16 x 95
Consew 199RI / R3 16 x 95
Consew 146RB 135 x 17 & 135 x 16TRI
Consew 255RB 135 x 17 & 135 x 16TRI
Juki LU56Z 135 x 17 & 135 x 16TRI
Juki LH512 135 x 5 (134)
Juki LU561 135 x 17 & 135 x 16TRI
Juki DDL-5530 16 x 95 (16 x 231)
Juki DDL-227 16 x 95 (16 x 231)
Phaff 138, 238 135 x 5 (134)
Phaff 145 135 x 5 (134)
Phaff 545 135 x 5 (134)
Make Model # Needle
Singer 107 135 x 5 (134)
Singer 111-W100 135 x 5 (134)
Singer 111-W112 135 x 17 & 135 x 16TRI
Singer 111-W151 / W153 135 x 17 & 135 x 16TRI
Singer 167 135 x 5 (134)
Singer 31-15 16 x 87
Singer 20U 135 x 5 (1955)
Sailrite / Tacsew 111 135 x 17 & 135 x 16TRI
Sailrite / Ultrafeed LS-1 / LSZ-1 135 x 17 & 135 x 16TRI
Sailrite Sailmaker 16 x 95
Sailrite SR200 / Long Arm 135 x 5 (134)
Thompson Mini Walker 135 x 17 & 135 x 16TRI